"News is something somebody doesn't want printed; all else is advertising." - William Randolph Hearst.

February 2018

March/April 2018
May/June 2018
July/August/September 2018
October/November 2018
December 2018
January 2019









This section contains ALL of the newest material before it is posted to the dedicated files. It will remain here for around 12 months. So readers can now find the latest observations, news, opinions and thoughts in the fastest time.

Caveat 1- Readers should always keep in mind that the material which is most recently posted is also, generally speaking, the least reliable. It is usually, though not always, my (or our) "first impressions". Sometimes it will be an a simple update, which of course is usually more reliable. In any event, I may further edit, quite liberally and without any notice or warning, anything you may read here.

Caveat 2- A good number of the posts below are by Anonymous Readers of this website. They are separated from my own posts (*******), and should >never be considered my own personal evaluation, belief or recommendation. In many cases, I will add a "Personal Reply" to the reader's letter. If so, my contribution will be the only editorial part of that post that I take personal responsibility for.

I have made these letters public because I feel they may be interesting and informative to some readers. I also like an exchange of observations, evaluations and ideas, even when I disagree with some of them. However, readers >must always consider the extent of the previous experiences of the anonymous writer. Serious thought should also be focused on the writer's actual objectivity and their sonic priorities. All of this background and perspective is obviously relevant and critical, and can be extremely difficult to evaluate within a short anecdotal observation. A continual skepticism in our audio world is a perspective that is difficult to argue with.




An Important Update...

"The Ultimate Truth" Hybrid Line Stage


There are now four different "Truth" line stages. Three of the four models have already been auditioned in my system and there's also one final version which is scheduled to be built in 2018. This current set of four versions of "The Truth" does NOT contain any of the versions of "The Truth" prior to the earliest model that I first heard in 2015, and eventually reported on in March 2016. (I believe it is also important to note that, according to the designer and builder of "The Truth" line stage, Ed Schilling; "the actual circuit itself is unchanged from the first one built in 2010".)

This report will not directly compare "The Truth" to any other line stage, passive or active, since I already went through that important exercise in The Original Truth Review (which I strongly advise reading first to understand the perspective and details of this report). The purpose of this report is straightfoward, I am simply comparing the various versions of "The Truth" I've heard to each other, which will provide potential purchasers, and current owners, a greater information base as to how to proceed in the future. Starting from scratch, below is a basic description of the four versions of "The Truth" that I've either already auditioned, or will soon audition.

The Four Versions of "The Truth" Hybrid Line Stage

T1. The original version of "The Truth", now designated here as the T1, which I received in 2015 and reported on in March 2016 Link to 2016 Review. This model of "The Truth" was originally purchased by my associate (at the full retail price). My friend eventually sold this model to me when he later decided that he wanted a new version of "The Truth" with gain (which I felt I didn't need). This inevitably leads us to the next version...

T2. This model arrived in May 2017 and is designated here as the T2. The T2 had a number of important differences between it and the original T1: Two power supplies; Two separate cases (including a dedicated power supply); two high-quality and expensive transformers, one per channel, for gain; high quality internal wiring; improved light diodes and NO remote volume control capability. (This existing T2 will eventually be converted into the T4, see below.)

T3. This model arrived in October 2017 and is designated here as the T3. The T3 model replaced the T1 and is now my current personal version of "The Truth". The T3 is different than either the T1 or the T2. The T3 still has a remote volume control; an additional (second) power supply; high quality copper and silver internal wiring; the improved light diodes and a (single) newer case.

T4. This final version of "The Truth", designated here as the T4, has yet to be built as this is written. The T4 will be an updated version of the existing T2, with a different step-up transformer, which provides the gain, and maybe some other changes as well in the internal wiring and the power supply. We hope to have the T4 available for audition and evaluation sometime in Fall/Winter 2018.

The T2 Line Stage - Its Background and Circuit Description

In January 2016, an associate (and very close friend) visited me for a few days in my Florida home. He was very interested in hearing "The Truth" (T1) line stage, which he had purchased in 2015 and had subsequently shipped directly to me first for evaluation. (My friend, a Canadian, did not have a system at the time which he felt was adequate to properly evaluate the T1.)

My associate, who was extremely familiar with my system, could not have been more impressed with the T1, and he is probably the most critical listener I know (which is saying something). He felt the performance gap between the T1 and every other line stage he had ever heard was "huge", and that group included not only the Coincident Statement and the EMIA, both of which he had heard in my system, but also the ultra-expensive models from Conrad Johnson, Audio Research and many others. However, my friend had one serious problem with the T1, and it was not either its "garage cosmetics" or its "useless remote control". The problem that bothered him was strictly related to ultimate volume levels and gain.

My friend felt the volume level was more than satisfactory for the digital sources, but he had a problem with my analogue source because a few records (maybe 1 to 2%) weren't able to reach a fully satisfying volume level, so my friend and I had a serious discussion about a possible solution. It was not possible to increase the gain of either the MC SUT or the phono stage (or the amplifiers for that matter), so that left only the T1 remaining to modify. But how?!

The T1 circuit does not allow any gain, so the only serious (and least compromised) solution was to add a step-up transformer somewhere in the circuit of the T1. It is an understatement to say that I was simply sceptical of this "solution". I felt the unprecedented performance of the T1 was well worth the minor downside of a few records unable to reach their optimum volume level. However, my friend felt we could "have it all"; sufficient gain and with no sonic compromises, because, in his opinion, the expensive transformers he was considering were "almost perfect". I had to hold back laughing at the time, and I confidently predicted that the ultimate sonic performance of this new version of "The Truth" would be much closer to the Coincident Statement and the EMIA (which both use outstanding transformers themselves) than the original T1.

Still, to be both practical and positive, I eventually came up with a design for the new model that satisfied both of us. This design was entirely based on utilizing the existing basic block circuit of the T1.

The T1 (and T3) basic circuit is: RCA Inputs - Selector Switch (4 Inputs) - Input Buffer - Light Diodes (Volume Attenuation) - Output Buffer - RCA Outputs.

My T2 circuit design was simple and obvious: On the RCA Input 1 only*, we would add a dedicated buffer and then the SUT, with the output of the SUT then going directly to the selector switch (with the remainder of the original T1 circuit unchanged). With this circuit, we could hear the transformer without any compromise, since its dedicated input buffer would ensure that the signal reaching it was not compromised. Meanwhile, the other three inputs would be completely uneffected by the additional dedicated buffer and the SUT. This means that these three inputs could then be directly compared to Input 1 to observe any sonic differences, if they existed. In effect, 3 of the 4 inputs (#2, 3, and 4) were still equivalent to the T1, while input #1 was, in effect, the new T2. However, my friend and I wanted to go even further...

We then agreed that if we were going to invest and risk the time and money to create a new version of "The Truth", the extra gain was not enough of a change on its own. In short, we wanted "to go all the way". So we decided to also have two power supplies; one PS for the new SUT input buffer and one PS for the two original buffers. We even wanted a separate dedicated case for the two power supplies. Finally, we decided we must have improved signal wiring as well (VH Audio OCC Copper), for the inputs and outputs. After that, we couldn't think of anything else to change, so we ordered the parts and waited for Ed Schilling to build the T2 without any time constraints or any other compromises. In the end, the new T2 arrived at my home in May 2017.

*If we had instead placed the SUT after the Input Buffer, as my friend originally planned, then all four inputs would have gone through the SUT, which would then prevent us from hearing both the specific sonic impact of the SUT on its own, plus any sonic differences caused by the other changes we made.

Comparison One - The T1 Versus The T2

The T2 was already well broken-in by Ed Schilling before it arrived, though I still broke it in further by using a highly challenging CD on "Repeat". I needed to be completely confident that neither Input #1 nor Input # 2 would have any unfair advantage. As it turned out, the OCC copper wire required 200 hours of break-in for it to sound its best. I then auditioned the T2 in my system for around a week, on my own, before my associate arrived. I made my usual detailed notes, though I did not communicate anything of substance to my associate in an effort to reduce any possibility of confirmation bias on his part. Meanwhile, there was another important change between the T1 and the T2, though it was totally unrelated to the sonics...

Ed Schilling had earlier mentioned to me that the photo cells (the internal devices utilized to change the volume level) had been updated in the T2. Schilling had further cautioned me that this change would have no effect on the sonics. However, I still noticed that the "action" of the volume control of the T2 was much different than the (heavily criticized) T1. How? To be clear, unlike the T1, the T2 did not have virtually the entire usable volume range confined to two hours (or less). With the new photo cells installed in the T2, it was now more like 4 to 5 hours of play. In fact, I now theorized that the (optional) remote control, previously useless, could finally be used successfully, but fate interceded; The T2 did not have a remote control, so I would have to patiently wait for the T3 for verification.

As for the all important sonics, there was cause for both celebration and frustration...

I played Input #1 first of course. I had to know immediately if, and how, the SUT had any effect on the sonics. Unfortunately, it did have an effect, and it was, not surprisingly, virtually all for the worse. The SUT did provide more than 10 dB of gain, which could be of critical importance for some systems, but the sound was veiled, and to such a degree that any audiophile should easily notice it. The same #1 SUT input also lost some musical information as well as compromising the T1's exciting sense of "nakedness" and "directness", which made it so special and unique. I was disappointed with these results, but not surprised. After listening to a some other very familiar cuts for confirmation, I moved on to Input #2, which bypassed the SUT, but still had the new copper OCC internal wire. What a contrast...

I of course played the same music with Input #2 as I had with Input #1. The Results - Not only did Input #2 prove to be sonically superior to Input #1, which was predictable, it was also an improvement over the T1 as well. In short, the T2 was now a sonic advancement of the T1, even though its gain stage, which could be bypassed, was a step-back, at least for now. The T2 (Inputs #2, 3 & 4) had slightly more harmonic content, body and low-level information when compared to the T1. This meant that the T2's sound-floor was a little lower. In most other sonic areas, the T1 and T2 sounded the same: Immediacy, dynamics, sound stage size and focus, frequency range, purity, neutrality etc. However, the T2 had one final sonic surprise in store for us.

The bass on the T2 was noticeably tighter, more controlled, detailed and cleaner than the T1 (which already had the finest bass reproduction I had ever heard), though it was not deeper. In fact, the overall improvement in the bass was large enough for my associate to finally find acceptable the unavoidable (and now reduced) sonic gap between the Acapella Ion Tweeters and the reference system's subwoofers. For him this was critical, because he strongly believed that the Ion tweeters exposed, and even brought undesirable attention to, the inevitable compromises in the bass frequencies, which were previously masked (see the review of the Acapella Ion Tweeters above for the details). The T2's stellar bass reproduction was actually able to change his perspective.

In the end, my associate was more impressed with the T2 than I was, though, to be frank, he was also more disappointed with the sonics of the Input #1 gain stage than I was, especially since it was his idea in the first place. However, my friend is absolutely not giving up on Input #1, since he is well aware that there is more than just one high quality SUT in the audio universe, but this important issue of gain now goes into hibernation until we reach the final stage of our experiments, the T4, which doesn't even exist yet. In fact, we still have to properly investigate the T3.

The T3 Line Stage - Its Background and Circuit Description

After confirmation that the T2, at its best, sonically outperformed the T1 (which was my Personal Reference), it was obvious that the T1 would now have to be upgraded, thus becoming the new T3. But how, since there were several options to consider? My first choice was easy; I would pass on using a SUT for gain, especially after hearing the disappointing results with the T2. The remaining choices required more thought...

I knew I had to use the superior internal OCC wire based on the positive results of the T2, but there was a choice there as well: Silver or Copper. The T2 used only the copper wire, so if I chose the copper as well, I knew for certain that the T3 would have the same degree of improvement, but what about the silver? The silver cost much more than the copper, but it could be even better, so I decided to have BOTH. I would use the expensive silver on 1 input only and 1 output only, and use the copper on the remaining 3 inputs and 1 output. I would then compare them directly to each other. Whichever wire was superior, I could eventually use on all 4 inputs and the two outputs. Next came the important issue of the power supplies.

I really wanted one dedicated power supply for each channel, in effect dual mono, but I was informed by Schilling that this option was not technically possible, so I chose the next best thing. There would be two independent power supplies; one for the input buffers and one for the output buffers. With this simple technique, nothing happening with the input buffers would adversely effect the output buffers and vice-versa of course.

Then there was the unexpected issue of the remote volume control. Prior to the existence of the T2, I never used the remote control with the T1 because it was impractical, and I didn't want to waste my money by repeating this same mistake in the T3. However, the T2's volume control range was radically different (larger) than the T1 (because of its new photo cells, also to be used in the T3), which completely changed my perspective, so I decided to retain the remote control in the T3.

I was then concerned that with the extra (second) power supply, and the unexpected retention of the internal remote control engine, the T3 would still require a second case (as did the T2), which was something I did not want. However, I was pleasantly surprised when Schilling informed me that with the absence of the two SUT for gain, the T3 now had enough room to fit everything in only one case, which made it more compact, practical and economical.

Finally, the actual signal circuit of the T3 would remain exactly the same as in the original T1, since there was now no SUT to deal with (see above for the details).

So I shipped my T1 back to Ed Schilling and I also sent him the OCC Copper and Silver wire, which I purchased directly from VH Audio (see link below). In the end, Schilling decided to start from scratch and build me an entirely new unit, instead of first removing, and then replacing, almost all the parts already in the original T1 case, which he felt was a waste of his time. I agreed with his decision and told him to take his time building this new model, since the T3 would be eventually compared to the T2, with multiple ramifications based on the ultimate results of those experiments.

As it turned out, due to a number of unforseen circumstances which caused delays, I would receive the T3 in October 2017.

Comparison Two - The T2 Versus The T3

After receiving the T3, I broke it in a further two weeks before it was installed in my system. To my surprise, and serious disappointment, the T3 (unlike the T1 and T2) had internal problems which made it impossible to evaluate: the input wiring was incorrect; the volume level was down significantly; and the L/R balance was also way off. I called Ed Schilling, who was shocked and highly apologetic. He lamented that the mis-wiring had never happened before and, even worse, when it did finally happen, a reviewer, of all people, ended up being the ultimate "victim" of his mistake. Schilling immediately sent me some new parts and then talked me through the easy-to-perform changes. The Result- The T3 was working at 100% within a week.

A. T2 Copper Vs. T3 Copper- I decided to first compare the T2 and T3 using only copper inputs and outputs. This reduced the number of variables between them to only their respective power supplies. So, which power supply, if either of them, was superior? The T3 was slightly better than the T2 with copper only. The T3 was a little more effortless and cleaner (Level 2 or very low Level 3). The T3 had a tiny advantage in inner detail, was a touch more complete and slightly more intelligible. It was also a little more dynamically convincing (though only because of its lower distortion) and less homogenized, especially with complex material. The bass and highs were the same. The sonic improvements were most easily heard with challenging recordings, and admittedly subtle enough that I couldn't even hear them with some recordings.

Overall, the additional power supply is a small refinement and certainly not a "big deal" or "dramatic", though I still think it is worth its relatively small investment. The closest analogies I can come up with is that the upgrade to the (two power supply) T3 is similar to the difference between listening at 9 PM and Midnight, or an average cable improvement. (To be clear, the sonic improvement when going to the T2's OCC copper, described above, was much larger.)

B. T3 Copper Vs. T3 Silver I used only my digital player (APL NWO-Master) for our experiments, because this source alone allowed us to make numerous* A/B comparisons while completely avoiding any problems with play/usage variance and, much more importantly, volume level matching. As it happened, this protocol was required to observe and make some sense of the mixed results. However, I will do my best to describe them and provide the best advice I can at this time.

The silver wire was faster, more immediate and even had better bass detail and control (which surprised us) than the copper. However, the copper was noticeably more natural than the silver, and this was consistently observed with all genres of music, simple or complex, and challenging or not. The silver wire's problems were in the high frequencies, which were noticeably emphasized. This same emphasis also compromised its cohesiveness, since the highs didn't match the rest of the frequency spectrum. At certain times, the silver wire also sounded like it triggered a subtle form of distortion in the high frequencies, with the result that the sound was not quite as "relaxed" and "effortless" as it was with the copper. An associate even found the silver wire "annoying" with some music.

To be thorough, we experimented with all four possible combinations of the T3:
1. Silver input/Silver output;
2. Copper input/Copper output;
3. Silver input/Copper output;
4. Copper input/Silver output.

We ended up with a "hybrid" solution to match my system's particular requirements: Copper inputs, with the Copper output for the monitors only, and the Silver output for the subwoofers only. This solution utilized the silver's performance advantage in the bass frequencies, while simultaneously avoiding any of its potential problems in the treble range.

*Played most frequently: Oregon-Beyond Words-Chesky CD JD130; Dead Can Dance-Toward the Within-MFSL SACD

Confirmation - Using The Ultimate & Definitive Test

While we were confident of our observations, I was still concerned that we could be allowing our subjective "tastes" dictate our evaluation, even unconsciously. We thus needed an absolute and unimpeachable "Reference" to make certain that our sonic issues with the silver wire were actually real, and not instead a simple preference and/or the end result of us hearing the (now exposed) problems with the source and/or the musical software. There was only one possible method to achieve this desired degree of "certainty"; we would connect the digital source, the APL NWO-Master, directly to the power amplifiers, thus bypassing the T3 entirely. Our evaluation would then be very simple: The wiring which sounded the closest to the direct connection would be "correct" (or accurate). As it turned out, our direct-connection experiment was well worth the effort, and even provided a big surprise as a bonus.

The "Direct Connection" Results - The Copper/Copper wiring combination was noticeably closest to the sound (or tonal balance) of the APL, going direct, than any other combination. This result was easy to observe and it ended any lingering doubts we had about the two wires' respective levels of accuracy. There was a big surprise as well, especially for me; The APL, when going direct to the amplifiers, sounded worse then when it went through the T3! The APL-Direct was relatively veiled and it also subtracted detail. Even the dynamic range was slightly compromised. In fact, the APL-Direct was not superior in even one single sonic parameter, including "nakedness". This result was an absolutely unprecedented experience in my audio life, and obviously the "Surprise of the Evening" for me.

This disappointing result conclusively demonstrates that even sources with relatively strong outputs, such as the APL, can still be optimized (though not "improved") when using "The Truth" line stage, and this was true even despite the fact that my amplifiers also have high input impedances, and are thus easy to drive.

The Remote Volume Control - I have more good news. The remote control is now useful, finally! I don't understand the technical reasons, but the remote control now changes the volume level, up or down, by only 1 or 2 decibels with each click, which makes it practical to use. So I now use the remote regularly, and recommend it highly. This is one of those rare instances, in audio, where something goes from being totally useless to highly practical in just a single step.

My Best Advice (at this time)

After living with the T3 for around 5 months, and playing it extensively in two different Reference Systems (the reference speakers, and the signal cables, were changed between October 2017 and March 2018), I advise a prospective purchaser, or those current (T1) owners who would like to upgrade, to simply duplicate my personal T3.

So, here are the relevant and specific details of the T3:

1. Two power supplies, one supply for each buffer stage.
2. OCC Copper on all* inputs. (Optional: OCC Silver* on one input.)
3. OCC Copper on one output; OCC Silver on one (remaining) output.
4. New Photo Cells, providing greater volume control range.
5. Remote volume control, only if deemed desirable.

*Explanation - The OCC copper is the most accurate and safest choice, but the OCC silver wire was more impressive with my "October 2017 System" as compared to what we later observed, and described above, with my "March 2018 System". Ultimately, the OCC silver's performance is frustratingly inconsistent and unpredictable. Accordingly, there may still be a chance that the silver will sound superior, or at least preferable, to the copper with a compatible source and/or system, and this is why I am still retaining the OCC silver wire on one of my T3's inputs.


While the T2 had mixed results, it did reveal the future direction of "The Truth" line stage. The resulting T3 was an unqualified success, plus we still have the (further updated) T4 to look forward to in the near future. From the broadest perspective, the major and fundamental step forward in overall line stage performance will always be the T1. These two upgraded models are, and can only be, refinements of the T1's great original achievement. However, I believe these refinements are still important and should be celebrated, and not ignored, by serious audiophiles.

Finally, the surprisingly disappointing results of going direct with the APL NWO-Master digital player compel me to re-emphasize a truly unique capability of "The Truth", which is far too easy to overlook: "The Truth" is always performing at "its very best"; regardless of the input source and/or regardless of the amplifiers and cables it is driving. In short, "The Truth", any model, is never sonically compromised by the components it is used with, no matter how difficult they are to optimize.

Current Pricing Details

I contacted Ed Schilling for the latest retail prices for "The Truth" line stage. Below are the prices as of March 2018:

The Basic Model, which includes dual power supplies, 3 inputs, the new photo cells and stock wire: $ 1,050

All OCC Copper wire: Plus $ 60

1 OCC Silver + 2 OCC Copper wire: Plus $ 150

All OCC Silver wire: Plus $ 210

Remote Volume Control: Plus $ 300

Reminders: Ed Schilling is flexible and always prepared to customize "The Truth" to the purchaser's personal requirements.

DIY enthusiasts can purchase the OCC wire themselves from VH Audio, direct link below. Rewiring "The Truth" is not difficult for those audiophiles with basic soldering experience.

Report To Come:

The T4, which will be an upgrade of the existing T2, has not yet been built. We are currently working out the specific upgrades we would like to be implemented, with the most important, by far, being the new (replacement) SUT, which is required for gain. I will provide updates as to the status of the T4 when I can. I am now hoping to audition the T4 sometime in late November or December 2018, but optimizing the T4's performance will take precedence over any other consideration.

Relevant Links:

The Horn Shoppe (Home of "The Truth" Line Stage, plus high-efficiency speakers)

Ed Schilling's email address:

VH Audio (OCC Copper and Silver Wire, plus V-Cap Teflon Capacitors)


My Audio System


Important News...

Coincident Pure Reference Extreme (II) Speakers

The "Extreme" version of the original (single enclosure) Coincident Pure Reference (now discontinued) came out in 2009. Eight years later, there is now a new version of the two-enclosure Extreme, which I have designated the "II". According to a phone conversation I had with Israel Blume, owner and designer of Coincident, and later confirmed by a visit to the Coincident website, there are several changes to the original Extreme (which he feels are of "significant proportions").

1. The new Statement cabling will be used internally.
2. The Accuton ceramic midrange and tweeter are the latest improved versions.
3. The crossover components are also improved along with some slight adjustments for further improvements.

The subwoofer also has a new inductor and the new internal Statement cabling. The selling price of the new model II is $ 29,995 for a pair, which is $ 3,000 more than the final $ 27,000 price of the original Extreme. Blume claims that his costs for all of the various II updates are "substantial".

The price for converting the original model to a Model II is $ 8,000 (or greater). Blume explained to me that his cost for this modification is prohibitive, since the old drivers can not be re-used, and the labor to remove everything (both drivers, crossover and the wire) and then re-build the speaker is extensive. There are also shipping charges both ways (and possible documentation hassles for owners not located in Canada). However, the cost to modify the monitors alone is $ 6,000. Even better, Blume also informed me that this partial conversion would still provide 80% of the overall improvement. This partial conversion may be the best approach for many owners, since there would also be a substantial savings in shipping costs as well.

What will I do...?

Important Commercial Message

My two pairs of Coincident Pure Reference Extreme speakers are now "For Sale".

They will be replaced with the new MK. II discussed above. Note- One pair of my Coincident Pure Reference Extreme Speakers has already been sold. There is now only one pair left for sale. Here is the detailed listing:

Coincident Pure Reference Extreme Speakers For Sale

If anyone is seriously interested in purchasing my remaining personal pair of the Coincident Extremes, contact me as soon as possible, because I always honor the earliest communication first. I promise that the speakers are in excellent working condition and will be solidly discounted.

Relevant Links:

Coincident Speaker Update Announcement & Further Information

My Comprehensive Review of the Coincident Pure Reference Extreme Speakers




CAVEAT-Please be advised that the readers' letters posted on this site are solely the opinion of that reader and may not necessarily represent or reflect the opinions of Arthur Salvatore. These letters furthermore, are not to be taken as being endorsed by Arthur Salvatore. They are posted because they may be edifying, thought provoking or entertaining.

Further- Almost all of the Readers Letters that are removed from this file, after the standard 12 Month posting (such as the February 2017 Readers Letters), are subsequently posted in their respective Reference Component Files: Amplifiers, Cartridges, Speakers etc. They can be found under "Readers Letters". If the reader's letter discussed more than one type of audio component, I will place that letter in the file of the component that was the most discussed.


Nothing This Month.



A New Standard...

Coincident Statement Line-Level Interconnects

Important Note - I had originally planned to first experiment, and conduct direct comparisons, with the Statement Speaker cables. However, as this is written in early 2018, the Statement speaker cables have not sonically stabilized. In fact, they are still improving, despite their now 200+ hours of break-in. It is obviously useless and a waste of time to focus on these cables until their optimum performance is known with certainty and fully experienced. Meanwhile, the Statement Interconnect cables, with line-level sources only at this point, have been optimized using various musical and non-musical signals (in my system, but mainly using a CD player on Repeat). Below is our report on these cables.

In January 2018, an associate and I conducted extensive testing, and direct comparisons, of the Statement Interconnect cables in my home. We used the Jadis JP-80 Phono Stage (heavily modified), which has two outputs, going into the "One Tube Wonder" ("OTW") line stage (see below). I used the OTW, instead of "The Truth" line stage, because it has an input toggle switch, which is critically important for performing immediate A/B comparisons between the two inputs ("The Truth" line stage has a selector switch).

Accordingly, we were able to simultaneously connect two competing cables from the Jadis to the OTW, and directly A/B compare them to each other without any other changes to the system (component shutdowns, replacing cables etc.), including, importantly, any changes to the volume level. All of the cables were 1 meter RCA/RCA.
Here are the results:

1. Statement Vs. Purist Audio Colossus Rev. A - My former audio store in Toronto was a Purist dealer many years ago, and for a time the Colossus was also my personal reference interconnect cable, which meant it was the best I had ever heard. During that period, the Colossus had one important sonic advantage over all the cables I heard from its generation; its sound-floor* was noticeably lower, which allowed more low-level information to pass through it.
(*I didn't fully understand and appreciate, or even use, the term "sound-floor" at that time, which I coined many years later.)

This particular Colossus pair we auditioned originally came from my store and has been owned and used by my associate for something like 20 years. Both of us were highly curious as to how this former "champion" would compare to high-quality contemporary cables.

The Purist was still excellent, but it was not the equal of, let alone superior to, the new Statement cable, or even the older generation Coincident Shotgun for that matter. The Purist was still competitive in purity and its low sound-floor was still evident, but it didn't have the immediacy, extended frequency range, details and speed of the Coincident cables. So while it was still enjoyable and unoffensive to listen to, it made its presence known in comparison to the Coincident cables, which relatively "disappeared".

2. Statement Vs. Polk Speaker Cable - Almost 20 years ago now, I (and two other associates, on their own) attempted to convert the Polk Speaker Cable into an Interconnect Cable. This may sound "insane" to some audiophiles, but it was a sensible (if not a mandatory) project for us at the time. Why? The Polk speaker cable was so far superior to any other cable we compared it to at that time (and for many years later), we began to think that maybe the basic Polk design was inherently superior in ALL signal cable applications. So, what happened?

The results were the same for all three of us; mainly frustration. In the end, the Polk interconnects were sonically outstanding, just like the speaker cables; extremely fast, highly detailed, extended and clean. However, they all had serious RFI problems which made them impossible to live with (we all lived in the Greater Toronto Area at the time). So, we simply gave up on the project, and when I used one of the remaining Polk interconnects in my (then new) Florida home, hoping for a reprieve, I still had a problem with noise, so I gave up on them for good. This brings us to 2018.

An old audio friend (and former customer) contacted me in late 2017 with some unexpected, though potentially exciting, news. My friend loves the Polk Speaker cables (even becoming an expert in assembling them) and, like my associates and I years ago, eventually made a serious attempt at converting them to interconnects. However, to my great surprise, he also informed me that this time he had succeeded in eliminating the noise (with extensive shielding). According to my friend, the Polk was dead quiet and, even better, it had outperformed every interconnect he had compared it to, and that included an older Coincident design (the "Extreme"). While the Polk I.C. is labor intensive to build, my friend still offered to loan me a pair to find out if it would work in another environment, and a completely different system. I, of course, immediately accepted. When the cables arrived, I was really impressed with their build quality, and they had excellent RCA males. I overcame my predictable and powerful audiophile urge to immediately use them, and instead first broke them in for a few hundred hours and then played them (I wanted absolutely no excuses if they failed).

Unfortunately, I again had highly disappointing results with the Polks, but not for the reason you would assume. My friend's RFI shielding turned out to be a big success; no noise period, but the highs were severely rolled off. The sound of these Polk interconnects was exactly the opposite of what you normally experience when hearing the Polk Speaker Cables; it was highly veiled, almost like the tweeters were turned off, if not even worse. At first I could not understand why and then it hit me; the Polk I.C. was connected from the Jadis JP-80 phono stage into "The Truth" line stage, with its almost infinitely high input impedance. I theorized that the Polk's high capacitance caused an extreme high-frequency roll-off when it was connected to any input of "The Truth", though I realized there could be other factors I was overlooking.

So I placed the Polk cables aside for a while, while attempting to find another method to test them. Then another audiophile friend arrived for his annual visit in January 2018. He had brought along the Purist Colossus cables and, much more importantly, the OTW (which had just been upgraded by Tom Tutay), so now I had another opportunity to test the Polk interconnects with a different line stage, and with a second listener as well.

Sadly, once again, we had disappointing results with the Polks; they were veiled and dead sounding, though they definitely sounded better with the OTW than they did with "The Truth". It didn't take us long to hear their sonic problems. However, the story still isn't over with the Polk interconnects. In May 2018, I received yet another letter (see below) concerning the Polk cables converted into interconnects and, again, the reader has had a great success with them. This is the same reader, Muhsin Ahamed, that generously provided his experiences (and advice) with terminating Polk Speaker cable last year (which is now located in the "Readers Letters" of the Reference Speaker Cables*).

3. Statement Vs. Coincident Shotgun - This was, by far, the most important and closest comparison we made, with multiple A/B experiments. The "Shotgun" was the earlier model that had been replaced by the Statement (as Coincident's top-of-the-line). The Shotgun had, in turn, proved superior to every other cable I had compared it to, from any source, making it the "lineal champion" of Interconnects in my personal experience. It was superior to the Coincident Extreme and my DIY Reference on direct comparisons and, indirectly and by inference, hundreds of other cables I've heard over the last 40 years (or whenever "audiophile cables" had originated).

While the two other direct comparisons were proverbial "knockouts" in favor of the Statement cables, this comparison was different. I heard the sonic differences first, which was unusual for us. I assume this was because I was already familiar with the Statement cables and knew what to listen for, even though I had never actually made a prior direct A/B comparison of them with the Shotgun cables (I wanted a second listener and an easier method of making the A/B switch, both of which my friend provided).

The Statement had sonic advantages across the board; in immediacy, transparency, detail, sound-floor etc., which all became more obvious and noticeable the longer we listened to them. My friend commented to me that he was surprised at how he was able to easily distinguish the two Coincident cables after around 30 minutes of listening, when it had been relatively difficult for him during the first few minutes (when I had noticed the advantages, which was the reverse order of our normal shared experiments).

Thus, the Coincident Statement, having now proved to be superior to every other interconnect cable I've heard to this point, is my new Reference Interconnect Line-Level Cable (phono cables will be tested in the future). However, there's one bit of unfinished business when it comes to the Statement cables.

Important Bonus Experiment...

4. Statement Vs. Coincident Extreme - In Spring 2017, another audiophile friend was visiting me and we had a chance to A/B the older Coincident Extreme interconnects to the then new (though still broken-in) Statement cables. However, this time the (2 meter) cables were connected between "The Truth" line stage and the Coincident Dragon amplifiers, which, in turn, were connected to the Coincident Pure Reference Extreme Subwoofers (doubled up). So, in effect, this test was for bass frequencies exclusively. Now this focus on bass frequencies may not be important for some audiophiles, but it is for me (in fact it is critical). The results of this particular test, especially at this present date, would normally be considered redundant to post, since the Extreme is now an older generation cable. However, the results were so extraordinary that I felt compelled to relay them. What happened?

My friend and I were both stunned at both the scope and degree of the improvement in bass reproduction with the Statement cables; more details, control, solidity, purity, impact etc. We both felt, and this is not an exaggeration, that it was actually similar to a component change. In fact, the Statement may have provided the largest single improvement, or at least the most easily noticed improvement, we had ever experienced by changing cables alone. And, it is important to note, the Extreme cables themselves had already proved superior, in the bass frequencies, to every other cable I had ever heard prior to the Statement. In effect, the new "champion" had KO'd the old and long-reigning champion in only 1 round.

While I was thrilled at the sonic improvements provided by the Statement cables, I was also disheartened by the realization that the Coincident subwoofers -and, by inference, all other subwoofers for that matter- were sonically compromised if their line-level signal cable wasn't equal to the performance of the Statement in the bass frequencies. Finally, while the Statement also had superior bass when we compared it, a year later, to the Shotgun above, that particular improvement was considerably smaller and less noteworthy.

Relevant Links:

Coincident Speaker Technology (High-efficiency speakers, tube electronics and cables)

My Audio System

*Muhsin Ahamed's Polk Cable Termination Article

Muhsin Ahamed Polk Interconnect Letter - "As I have a few rolls of Cobra, I have been happily experimenting. I have made Cobra interconnect with KLE Copper Harmony plugs that are really good. Very low sound floor according to your definition.

My friend who has a uber highend system says these cables are 'really quiet and have great clarity'."

An Interesting Alternative..

Tom Tutay's "One Tube Wonder" Line Stage

As I discussed above (in my Coincident Statement cable review), my associate and I listened to this component for an entire evening (around 6 hours). Our evaluation of its sonic performance is straightforward: The Tom Tutay "One Tube Wonder" (OTW) line stage was outstanding. The OTW has no gain, like "The Truth", and is, again, a buffer of the highest quality. I would like to make the OTW a "Reference", but I can't since there was only one (lengthy) listening session, and I also didn't have the time to make any definitive A/B comparisons. We did play a wide variety of music that evening; Diane Patton, Scheherazade (Mehta), Lucia Hwong and two Harmonia Mundi records.

Still, the OTW is the best alternative I know of, at this time, for those audiophiles who are seeking a performance level similar to "The Truth", but with a greater "tube signature", no requirement of gain and the ability to drive two amplifiers per channel (for bi-amping). My contemporaneous notes and memory are both limited at this time, so I can't provide my usual wide-range of performance details, but what impressed me the most about the OTW was its simply incredible naturalness and also its superb recreation of space. So, to be clear; If "The Truth" did not exist, there's a good chance that the "One Tube Wonder" would now be in my system as its substitute.

Relevant and Practical Details - There is a two to three month time frame from the initial order to delivery. Tom Tutay builds everything to order, so most custom preferences should be able to be satisfied. The current cost is: $ 1,500.

Tom Tutay Contact Information:


Telephone Number: 850-244-3041

Picture One - One Tube Wonder - Line Stage & Power Supply


Picture Two - One Tube Wonder Circuit (The "Guts")





CAVEAT-Please be advised that the readers’ letters posted on this site are solely the opinion of that reader and may not necessarily represent or reflect the opinions of Arthur Salvatore. These letters furthermore, are not to be taken as being endorsed by Arthur Salvatore. They are posted because they may be edifying, thought provoking or entertaining.

Further- Almost all of the Readers Letters that are removed from this file, after the standard 12 Month posting (such as the March/April 2017 Readers Letters), are subsequently posted in their respective Reference Component Files: Amplifiers, Cartridges, Speakers etc. They can be found under "Readers Letters". If the reader's letter discussed more than one type of audio component, I will place that letter in the file of the component that was the most discussed.



Until I find a list which is more definitive, and objective, here are some speakers that I, and mainly the Readers of this websire, have found to work very well with low-powered Single Ended Triode (SET) amplifiers;

AcuHorn rosso superiore175

Affirm (formerly Maxxhorn) Lumination & Immersion

Apogee Acoustics Definitive Ribbon Speaker (very expensive)

Aspara Acoustics HL1 Horn Speaker

Audio Note ANE SEC Signature

Avantgarde Duo and Trio (All Versions)

BD-Design Oris and Orphean Models

Bottlehead Straight 8s (Discontinued)

Brentworth Sound Lab

Cain & Cain BEN ES (and other models)

Cardersound Madison (Single-Drive Back Loaded Horns)

Coincident (Total) Victory II & Pure Reference Extreme (and most of their other models)

Decware (Various Models)

(DIY Hi-Fi Supply) Crescendo Ribbon Horn Speaker System

Fab Audio Model 1 (Toronto, Canada)

FAL Supreme-C90 EXW or EXII

Goodmans of England 5 or 612s

Hawthorne Solo and Duet

Horn Shoppe (Two Models)

Horning Hybrids (Various models)

Hoyt-Bedford Speakers

Klipschorn and La Scala (All Versions)

Living Voice OBX-R2 (UK)

Musical Affairs Grand Crescendo

Omega Speaker Systems

Pi Speakers (Various Models)

ProAc Response Two*

Prometheus II

Reference 3A MM de Capo i

RL Acoustique Lamhorn 1.8 (Montreal, Canada)

Sonist Concerto 2

Sunlight Engineering 308

Supravox Open Baffle

Teresonic (Various Models)

Tonian Acoustics (Various Models)

Vaughn Zinfandel

WLM (Various Models)

Zingali Horns

Zu Defintion

*Recommended by a reader and Gordon Rankin (Wavelength Audio), a veteran expert SET designer, despite its 86 dB sensitivity.

I would appreciate finding out about any other models, that readers have actually heard for themselves, to add to this list. This list is not a temporary project. It will be kept permanently in the Speaker Files. Further, don't expect to see the speaker models posted here a day or so after your e-mail is sent to me. Please remember that I'm usually behind in ALL my correspondence, including even the brief and helpful information letters. I will keep my own "SET friendly list" because at least one list should have no commercial foundation, temptations or considerations**.

Important- I would like to know if any of the above models can be bi-amped. This is critical, because I am convinced, based on decades of experience, that speakers with the capability of being bi-amped have far superior potential, assuming everything else is equal.

**For example, another website placed the Merlin speakers on their list, which, despite all their enviable qualities, will still not work well with low-powered SET amplifiers. I know, because I tried them. The sensitivity was just too low. Merlin, themselves, has used the excellent CAT amplifiers, which are pentode based and push-pull, at their audio show demonstrations. I would trust Merlin to know how to optimize their own speaker designs.



Important Updates

1. Awful Weather - Since early April, which was when we made "The Truth" T2 and T3 comparisons (see above), the atrocious weather, which has arrived much earlier than normal, has made listening sessions, serious or even just for fun, almost impossible (and even dangerous) to conduct. It has been storms and power outages almost every day. Accordingly, I haven't been able to even further break-in either the new Statement speaker cables or my new speakers (see below), let alone conduct my normal range of experiments.

2. "The Truth" T4 - This component is now in the process of being built in July. I delayed the construction/modification of this model myself, since there is now no rush because of the lack of listening opportunities due to the typical poor weather of the season. Also, my friend, who actually owns the T4, has had some further thoughts and ideas that may be implemented in this final version of "The Truth".

3. Coincident Pure Reference Extreme (PRE) Mk. II - I sold one pair of my original PRE (double pair) and used those funds, plus a healthy premium, to purchase a demonstrator pair of the most recent version, the Mk. II. While the PRE II pair arrived in February, I am still not in a position to post even a "Preliminary Report". Why not?

1. The weather, and other commitments at the time as well, severely reduced the PRE II's break-in hours. Even though the speakers were not brand new when I received them, I was informed by the manufacturer that they still required considerably more hours for full break-in and optimization, and this caveat has since been confirmed by my own experiences.

2. The PRE II, both the subs and monitors, had been compromised in route by the shipper (UPS). I was able to make a successful minor repair of the subwoofers (and maybe even slightly improve them in the process) with the assistance of a neighbor. However, I felt the PRE II monitors should be shipped back to the manufacturer, since the work required greater skill and I also wanted to be absolutely certain that they would be performing at their highest level. As this note is posted, I am still waiting for them to be returned to me so I can continue the break-in and evaluation process. Until then...

I don't like "audio teasers" (the late Harry Pearson was a master of them), so while I can't provide any serious report on the PRE II with confidence at this time, I can still state that the PRE II speakers, both the subwoofers and the monitors, are definitely an improvement over the original PRE. The full scope and degree of the sonic improvements are unknown to me at this time. They will only be revealed when the speakers are fully broken-in, optimized and auditioned with the both the most subtle and the most challenging of recordings. I assume that all of this will occur sometime this Fall.

Also, please don't forget that I must also eventually audition the PRE II speakers both doubled-up and with the Acapella Ion Super Tweeters as well. In conclusion, this entire PRE II speaker replacement process is a serious project which will take many months to complete to my normal standards.

This Website's Unique Perspective

From my long-term observations, the primary distinction between myself and all other audio journalists, writers and reviewers, past or present, is the strong and unprecedented emphasis I have placed on the reproduction of (very) soft and subtle sounds. There are many other differences between myself and the others, which is normal and to be expected, but none of them are as evident and important. In fact, I even coined a new expression for the concept of accurately reproducing "soft sounds", after I realized that the default generic term, popular with most audiophiles, was both ill-defined and misleading: Here's the relevant article and direct link: THE "SOUND-FLOOR"-THE ULTIMATE KEY

Music requires soft sounds to be complete and, just as important, an audio system, if it is to be honesty judged as "outstanding", must have the ability to play at (very) soft volume levels without "dying" and still sound real and alive. My 50 years of experience with tube electronics, along with the countless positive results I've had modifying these same electronics, taught me the critical importance of this highly neglected sonic virtue. However, the various experiences I had with literally thousands of fellow audiophiles are the real foundation for my conviction concerning this issue. It has been my consistent observation, for decades, that the more sensitive and experienced the listener, the more they appreciate hearing all the subtleties of soft sounds. This is the indisputable confirmation that provides the confidence for my conviction.

I also highly value (or highly prioritize) the organization of sounds because, at its most fundamental definition, music is simply organized sound. I share this value of organization with (too) few contemporary audio journalists. Both are equally necessary, because soft sound information is mainly useless unless it is properly organized and there isn't as much value to proper organization when much of the information that is supposed to be organized is missing. Three components, the Morrison speaker, the Golden Tube SET amplifier, and the Reference Lenco, specifically and jointly, taught me the importance of this value.

However, I also realize that most audio writers, and audio enthusiasts in general, have very different sonic priorities than mine. The most common sonic priorities, by far, are "the basics" as I define them; the ability of an audio system to play loud, deep and high.

In actuality, when you think about it, it's relatively easy to create an audio system that has the ability to play loud, sound "big" and also go both deep and high. You simply have to use a large assortment of speaker drivers, utilize both large speaker cabinets and woofers, and have a large amplifier output stage, either transistor or tube. It's much more difficult, and expensive, to accomplish the next logical step: Have that same type of audio system also play consistently clean and smooth. Those important upgrades require improved drivers and passive crossover parts, deader cabinets and better power supplies. In recent times, two of the most well-known audio reviewers, (the now late) Harry Pearson and Michael Fremer, had/have a strong preference for systems with those strengths (which also cost a fortune), but I don't share their highest sonic priorities.

In contrast, it's my long-time experience that the most difficult audio accomplishment is for an audio system to accurately play both softly and organized simultaneously, which takes real thought, numerous experiments, research, along with really high quality (and expensive) parts. This is why the vast majority of audio designers simply ignore and/or avoid the attempt to reach, let alone to master, this particular goal. Why is this goal so difficult to achieve? Simple: There is no room for any error; one mistake, anywhere in the long audio chain, means failure.

Example 1: It's wonderful to have deep bass and extended highs in an audio system, as I have and enjoy them myself, but not only are these frequency extremes virtually useless unless they are time coordinated to everything else, specifically the midrange, they actually become an audible distraction if they are out of place and bring attention to themselves as "alien" to the remaining complete sound.

Example 2: Most audio systems, regardless of cost, have to play louder than life to capture the details and excitement in the original recording, and they subsequently "die" when the music volume is soft. This is because they are missing sonic information due the complexity and problems with the signal path, in the speakers and in the electronics, and this missing information is never completely recaptured when playing loud, though it may be less obscured. Meanwhile, a superior system can play at realistic levels and still not sound dead when the music inevitably becomes soft in volume.

In my experience, the most evolved audio systems in theory, which are also the rarest in actuality, can play at an even lower volume than the musicians normally play in real life and still sound alive. This is the goal I achieved over several decades and which other serious audiophiles can also replicate, though everything in the system has to be just right, with not even one weak link, for this reality to occur.

My article, "Building a Great Audio System", is the best advice I can provide at this time to reach this goal in any system, and it does NOT require huge expenditures. Instead, if the various structures are followed, the sonic results will also inevitably follow, in general, even if they don't quite equal what the (theoretical) very best can do at any one time.

Almost as important as the above, a truly outstanding audio system requires the ability to reproduce immediate and uninhibited dynamic shifts, to induce involuntary "goose bumps" and the complete attention and involvement of the listener. Finally, this same outstanding system requires a consistent neutrality. Thus there is no unnatural emphasis, or demphasis, of a specific frequency and/or a frequency range ("consistent" because it doesn't alter with either the frequency and/or volume levels). These final priorities of "uncompressed sound" and "level sound" basically completes the fundamental sonic picture.

So for now, it may be considered as my personal "Sonic Stool" - Complete sound, Organized sound, Uncompressed sound and Level Sound*.

*Though I strongly believe that "Audio" is far too complex a subject for any simple equation, no matter how thoughtful, precise and true, to ever fully encompass and define it.




CAVEAT-Please be advised that the readers’ letters posted on this site are solely the opinion of that reader and may not necessarily represent or reflect the opinions of Arthur Salvatore. These letters furthermore, are not to be taken as being endorsed by Arthur Salvatore. They are posted because they may be edifying, thought provoking or entertaining.

Further- Almost all of the Readers Letters that are removed from this file, after the standard 12 Month posting (such as the May/June 2017 Readers Letters), are subsequently posted in their respective Reference Component Files: Amplifiers, Cartridges, Speakers etc. They can be found under "Readers Letters". If the reader's letter discussed more than one type of audio component, I will place that letter in the file of the component that was the most discussed.


Nothing This Period.


Further Updates

1. Awful Weather - The atrocious weather, which arrived much earlier than normal this year, also stayed around much longer. However, while the unusually intense heat has remained, the more dangerous storms have now quieted down. Accordingly, I have now finally been able to at least partially break-in the new PRE II speakers (see below), plus almost fully break-in the Statement speaker cables.

2. "The Truth" T4 - This component has now been built and is currently (October 2018) being broken-in by the manufacturer, Ed Schilling, who informed me that he is very impressed with it so far. The details are to come, but I can inform you now that Schilling was able to build the T4 using only ONE case (including all the transformers, remote volume controls and power supplies), and without any compromises of any type (though the single T4 case is deeper than the now standard "Truth" that I own, the T3).

3. Coincident Pure Reference Extreme (PRE) Mk. II - Even though the PRE II speakers were not brand new when I first received them in February (I purchased demonstrators), I was informed by the manufacturer that they still required considerably more hours for full break-in and optimization, and this caveat has since been confirmed by my own experiences with them.

Further, the PRE II, both the subwoofers and monitors, were compromised in route by the shipper (UPS). I was able to repair (and even improve) the subwoofers on my own, but the PRE II monitors had to be shipped back to the manufacturer, since the work required greater skill and I also wanted to be absolutely certain that they would be performing at their highest potential level. The monitors have now been back for a few months and I have been able to finally play them on a regular basis. At this is written, October 2018, I now have over 200 hours of play on the monitors (though far less playing hours on the subwoofers). So, where do we stand...?

I still can't provide a comprehensive report on the PRE II with confidence at this time. I won't even begin the process until I have another 100 hours of play on them. I also require the added input of at least one other experienced and objective listener, whom hears them at their best. However, I can now go further than I did three months ago in my June Update (above): The PRE II speakers, both the subwoofers and the monitors, are a serious improvement over the original PRE. In fact, the Mk. II Upgrade (from the manufacturer) may be the best upgrade choice for most owners of the original PRE. (I will go into further detail about possible PRE "Upgrades" in my report, since I have given this serious issue a lot of thought.)

As I wrote above, the full scope and degree of the sonic improvements will only be revealed when the speakers are fully broken-in, optimized and auditioned with the both the most subtle and the most challenging of recordings. I assume that all of this will occur sometime this Fall. Finally, I must eventually audition the PRE II speakers "doubled-up" (stacked pairs), and also with the Acapella Ion Super Tweeters as well. In conclusion, this entire PRE II speaker replacement process is a serious project which will take many months to complete to my normal standards.

My Hierarchy/Levels of Audible Improvements

This is my best attempt at describing the different levels of improvement an audiophile may hear and observe during a comparison (assuming they actually exist in the first place). I also provide some examples that we (myself and one, or more, of my associates along with me) have experienced in the last few years, which will change over time to keep them recent and relevant.

The actual observations will constitute an objective reality to the listener. However, the listener's reaction to those same observations will, of course, always be personal and subjective, and may differ greatly from my descriptions, and from other audiophiles. In fact, in my experience...

For the most fanatical and enthusiastic audiophiles, a Level 3 observation may still trigger a Level 5 reaction. In stark contrast, some "objectivist" listeners will only acknowledge Level 1 to 3 improvements (at most!) to any component they hear, with the one exception of speakers, and react accordingly.

Important Note - It has been my long-term observation that it's easier to hear an improvement in sonics than to hear a deterioration. This is true, in my experience, for both veteran and novice audiophiles. This general rule is the reason why cartridge and tube deterioration, and many other sonic problems (some temporary), are not quickly recognized. This improvement/deterioration rule is also the foundation of a "Level 1 Improvement" (see below), and why many audiophiles feel uncomfortable with blind tests: Confirmation of what you just heard isn't as obvious or easy as you expected.

Now, from the most subtle to the most profound...

Level 1- The sonic improvement can be subtly, though still consistently, heard when switching to the superior component (A/B). However, the reverse matching deterioration is not heard when switching back (B/A) to the inferior component.

Example- Ars Acoustica Prototype I.C. Cable Vs. Coincident Extreme I.C. Cable (between the Jadis phono stage and the line stage)

Level 2- The sonic improvement can be heard when both switching components and then when switching back, but it is no longer specifically (or easily) heard after a short period of time; sometimes seconds, but almost always less than one minute.

Example- Coincident Extreme Shotgun I.C. Vs. Ars Acoustica Prototype I.C. (between the Jadis phono stage and the line stage)

Level 3- The sonic improvement can be heard at length, but an effort may be required to listen specifically for it, so it may not be "obvious" or inescapable. This improvement may or may not be significant; meaning there's a chance that an audiophile may be able to remove this improvement from their system and still not suffer from its absence.

Example- "The Truth" T3 Line Stage Vs. "The Truth" T1 Line Stage

Level 4- The sonic improvement can be heard all the time, and without any effort, by an audiophile. However, it's still actually possible for it to be not heard by ordinary listeners, meaning those people with no interest in sound quality. This improvement is still "significant"; so a serious audiophile will almost always suffer from its absence.

Example- Acapella TW 1S Ion Super Tweeters

Level 5- The sonic improvement can be heard at all times by anyone with healthy hearing, including listeners with no interest in sound quality. The improvement is now always "significant"; meaning an audiophile can no longer enjoy their system without this specific improvement.

Example- ZYX UNIverse II Vs. "Original" ZYX UNIverse

Level 6- The sonic improvement is "transformational"; meaning not only would it be completely unthinkable to live without it, but the improvement actually alters an audiophile's thinking and perspective on both their particular system and "Audio" in general.

Example- Reference Lenco L-75 Turntable/Graham Phantom (Supreme) Tonearm Vs. Forsell Air Reference Turntable/Tonearm

Further Thoughts

These different levels do not correlate exactly with numbers or percentages. Personal preferences and a listener's subjective reaction always trump the listener's analytical judgment of a component's performance and whatever improvement(s) is/are noticeable.

As an example, let's say one component ("A") is noticeably superior to the Reference ("R") in 10 different areas, but only by approximately 1% in each case. In contrast, let's say a third component ("B") sounds the same as "R" in almost every way, but is better in one area by 5%. It is very possible that component "B" will still receive a higher level than "A" to the audiophile, especially if the improved area is more highly valued. In fact, it is not uncommon for some audiophiles to give up 1% of the performance across the board just to get that extra 10% improvement in the one area that really moves them and gets them "involved" with the music.

To make this more personal, I believe if I were to quantify the actual examples that were given above, the Lenco/Graham wouldn't receive the largest number, but I still feel it was transformative because it improved areas that broke new ground (for me), and which couldn't be replicated by any other component category (like going from a transistor amp to a good SET amp on the right speaker).

Also, while the first two Levels leave basically no room for "nuance", since they are so subtle and tightly defined to begin with, the medium and higher Levels (3 to 6) do have smaller iterations (or degrees) within them, such as 4.1, 4.2, 5.1, 5.2 etc. In fact, even a "difference in kind" still has some "variety" or a range, since their degree and impact are not all exactly the same, even if the practical end results are the same. Levels 3 and 4 are both very similar to each other, and the most common to experience when making actual comparisons. Further, a "strong 3" and a "weak 4" are basically the same in practice and interchangeable in effect.

Finally, below is how I used numbers to illustrate why I was so enthusiastic about the Graham Phantom Supreme compared to the earlier II it replaced, when the differences I described didn't appear to be that significant...

Let's assume the II is 95% "perfect", while the Supreme is 97% "perfect". Most audiophiles would agree that the difference between the numbers 95 and 97 is marginal. However, the difference between 5% (100-95) and 3% (100-97), which is a 40% reduction in imperfection, can be profound to an audiophile (or any "perfectionist" for that matter). Sometimes a change in perspective clarifies an otherwise confusing subject.




CAVEAT-Please be advised that the readers’ letters posted on this site are solely the opinion of that reader and may not necessarily represent or reflect the opinions of Arthur Salvatore. These letters furthermore, are not to be taken as being endorsed by Arthur Salvatore. They are posted because they may be edifying, thought provoking or entertaining.

Further- Almost all of the Readers Letters that are removed from this file, after the standard 12 Month posting (such as the July/August/September 2017 Readers Letters), are subsequently posted in their respective Reference Component Files: Amplifiers, Cartridges, Speakers etc. They can be found under "Readers Letters". If the reader's letter discussed more than one type of audio component, I will place that letter in the file of the component that was the most discussed.


Nothing This Period.



Latest Updates

1. Awful Weather - The atrocious summer weather, the worst I ever experienced in Florida, is now history. Accordingly, I have been able to substantially break-in the new PRE II speakers (see below), plus fully break-in the Statement speaker cables.

2. "The Truth" T4 - The T4 is currently (November 2018) being broken-in by the manufacturer, Ed Schilling (some details above). I will receive the T4 sometime in early December. My associate, who actually owns the T4, will also arrive in Florida sometime in December. We will thoroughly audition and test the T4 at that time. The report on the T4 should come out in late December or early January 2019.

3. Coincident Pure Reference Extreme (PRE) Mk. II - I now have more than 300 hours of play time on the PRE II monitors. I will shortly begin my most challenging auditioning and testing, and will report the results, observations and related thoughts and advice, in late December and/or January 2019. I will also have three other experienced and objective listeners available to assist me.



This important article will be reposted & updated annually...

Building a Great Audio System

This article is a summary of the cumulative observations and recommendations included within this website as concisely as possible. Below is the best advice I can provide as this is written and it will be updated if and when necessary. This summary will be relevant if the ultimate goal of the reader is to maximize the natural, accurate and complete musical communication that is possible with modern audio components. It is designed to work with the largest variety of musical software available to us today, and particularly if it is acoustical in nature.

I obviously realize that there are other serious alternatives, and with easily noticeable advantages to my approach. However, in my experience, they all have a larger number of serious compromises with a greater variety of music. Further, none of the recommendations I make below have to cost a huge amount of money, and all the steps can be made over a period of time.

The Fundamental Structures of a Great Audio System

1. The Analogue source should be an Idler-Drive turntable (or a Reel-To-Reel Tape Deck)

Explanation- Idler-drives have a fundamental sonic advantage over belt-drive turntables; speed stability, which is grossly under appreciated by most audiophiles. Idlers' inherent disadvantage, noise transference, has now been reduced to insignificance by using modern plinths, bearings and improved motor isolation. In short, idler-drives overcame their original problem economically, while belt-drives have not and (apparently) can not. (Direct-drives are still an unanswered question.) Reel-to-reel tapes have even more sonic potential, but they're a serious hassle to use for most audiophiles and good software is also extremely limited.

2. A Moving-Coil (or Strain-gauge or Optical?) cartridge

Explanation- Moving-coils have several technical advantages due to their low-mass and low inductance combined with higher overall energy output, making them worth the extra expense under most circumstances. Strain-gauge and/or Optical cartridges may have even greater technical advantages, but I haven't heard a modern version of one of them in a controlled environment.

3. The Digital source should use the highest quality (OEM) Esoteric Transport that is affordable

Explanation- Every outstanding digital player we have heard has used an Esoteric transport. Until computer audio is finally mature, an actual digital disc player is still the best and safest approach, which means an Esoteric transport should be part of the equation. There are usually many used Esoteric players for sale at large discounts. They are also incredibly well built and reliable, which is another important factor. Esoteric (OEM) transports are also used in non-Esoteric players as well. The DAC, after it inevitably becomes obsolete, can always be updated.

4. The Electronics should be Separates, and using Tubes, with the one possible exception of the bass amplifiers

Explanation- Tube electronics still have noticeable and important sonic advantages over even the finest transistor models. Separate components offer both the greatest potential performance and flexibility, including mono amplifiers.

5. The Speakers must be HIGH-EFFICIENCY AND BOTH Bi-ampable AND SET-Friendly

Explanation- All the finest systems I've ever heard were bi-amplified (with subwoofers). This is not a coincidence. When the amplifier driving the midrange and tweeters is not effected by the (sub)woofers (which would have their own dedicated amps), there are important (if not fundamental) sonic advantages that any audiophile can hear. Even if the bi-ampable speaker can not be bi-amped when first purchased (for whatever reason), that option is still available in the future.

SET amplifiers have important sonic advantages in the midrange and highs over any other amplifier design in my experience, especially with acoustical music. They have the lowest sound-floor and are the best "organized" (and music is simply "organized sound"). Even if a SET amplifier is not used at first, the SET-friendly speaker will provide that option in the future.

Bonus Suggestions:

1. The SET amplifier, in a bi-amplified system, must use NO FeedBack, allowing it to become "Dedicated" with a simple capacitor modification

Explanation- Some audiophiles may consider this as more of a refinement, but I don't feel that way. The cumulative sonic improvements, discussed in the article linked to below, are easily observed and much too important to ignore.

2. Audiophiles should experiment with a Passive transformer, or a LDR, line stage/volume pot BEFORE utilizing a serious active line stage

Explanation- Most systems require an active line stage for optimum performance, but a passive line stage, or volume pot, can be used if the source has the required energy to directly drive the amplifier(s). If successful, there will be both improved performance and money saved, so an experiment is always in order. See the Link below.

3. Audiophiles should experiment with high-quality Super Tweeters

Explanation- Most systems require a good super tweeter for optimum performance. Proper set-up and implementation are critical for success, so time, effort and patience are required. See the Link below

4. Dedicated Digital Systems should always have the signal remain in the "Digital Domain" for as long as possible

Explanation- Digital's most noticeable sonic weaknesses occur during the unavoidable conversions: A/D + D/A. Thus the most rational strategy is to reduce these conversions to the bare minimum; only one A/D and one D/A if possible, by remaining strictly in the digital domain from the first conversion (software) until the second and final conversion. This strategy also minimizes the length of the analogue chain as well, which is another sonic benefit.

The Refinements of a Great Audio System

Individually, most of these refinements will be subtle in effect, but collectively they will almost always be significant in their effect. They are usually the difference between the "Excellent" and the truly "Great" Systems.

1. All Signal and Power Cables- As short as possible

2. Capacitors - Teflon in the direct signal path and all film (metallized) in the high voltage power supply

3. Exact speaker set-up and Room treatments

4. Acoustical Isolation of both the Sources and the Electronics

5. AC filtering and even AC regeneration if necessary

6. All records should be cleaned first with an Ultra Sonic Record Cleaning Machine

Relevant and Related Articles and Essays

These are the articles and essays which describe and explain, sometime in great detail, the respective experiences and reasons why I specifically chose each of the "Structures" and "Bonus Suggestions" mentioned above:

"Reference" Lenco L 75 Idler-Drive Turntable (#1 "Structure")

DIGITAL SOURCES (#3 Structure)

Coincident Frankenstein 300B SET Amplifier (#4 & #5 Structures)

Coincident Pure Reference Extreme Speakers (#5 SET-Friendly & Bi-Amping Structures)

Dedicated SET Amplifier Capacitor Modification (#1 Bonus Suggestions)

LINE STAGES (Active or Passive? #2 Bonus Suggestions)

Acapella Ion TW 1S Super Tweeter (#3 Bonus Suggestions)


A related article that will also be reposted & updated annually...

The Most Important Audiophile Choice

I decided to both expand upon, and yet still simplify, my earlier article, seen above, titled: Building a Great Audio System. This time I will argue that there is a single most important choice an audiophile can make when creating a great audio system or, at the least, creating the finest audio system for the least amount of money invested. That critical choice is unambiguously simple:

Purchase a High-Efficiency, SET-Friendly & Bi-Ampable Speaker

There are several practical reasons why this is the best choice a serious audiophile can ever make, as well as actual science to support it. First we'll focus on the practical reasons, which almost all involve maximizing the flexibility and the unlimited options resulting from this initial choice:

1. This choice provides the flexibility to choose any amplifier you prefer and can afford; low power/high power, tube/transistor, feedback/non-feedback, SET/non-SET or Class A or A/B or D. All these amplifier types are compatible with this choice of speaker. The amplifier choice thus becomes strictly one of audio quality, not quantity, which eliminates the frustrating compromises that other audiophiles must accept and live with.

2. With a high-efficiency speaker, other formerly impractical options now become possible. The system may no longer require the extra gain of an active line stage, which means a passive line stage, or a hybrid model like "The Truth", is now an option. Low output (analogue or digital) sources, which may sound "dead" with normal/average efficiency speakers, are now also options.

3. Bi-amping the speaker is also an option; now, later or never, with the added benefit that the speaker can utilize any combination of amplifiers, based on your own musical preferences and budget. Remember- Bi-amping is a "Structure of a Great Audio System".

4. Lower power, everything else being equal, also means lower cost, so there is even a monetary advantage to this important choice. (Passive line stages are also less expensive than equivalent active line stages, obviously.)

I have now lived with high-efficiency speakers for 25 years and I have never looked back. It is the most positively consequential choice I have ever made in my audio life. Countless other audiophiles have done the same, both before and after me, and it is unusual to learn of anyone who later reversed themselves. There are good reasons why these audiophiles remain "faithful": The advantages when using high-efficiency speakers are far too important in sonics, component flexibility and savings, to ever give up. Then there's the Science. It's all about Energy...

The Fundamental Scientific Advantage of High-Efficiency Speakers

I am NOT a "scientist", though I do have a basic understanding of the science underlaying audio. Many other audiophiles can make the same claim as I, while others know far more about (audio) science than I ever will, but what I am about to theorize is something anyone can understand. My theory is based on an indisputable reality. Further, I believe it is rational, logical and thus irrefutable. Once again, it is founded on a simple truth and fact: High-Efficiency speakers require less energy to perform at the same level as "normal" speakers. Further, serious Audio is just about recreating, as closely as possible, the original energy, of the original performance, in your listening room.

High-Efficiency (HF) is the most important and critical advantage in audio. Why? HF speakers require less energy from outside sources to achieve the same level of performance. The energy from those "outside sources" is always imperfect and compromised. Accordingly, the less energy from "outside sources" included in the total energy created by the system, the less compromised the sound will be. And, to be clear, "outside sources" specifically mean electronic phono stages, DACs, active line stages and power amplifiers.

All of these electronic components are imperfect and "enemies" of music, though all of them are also unfortunately necessary for the reproduction of music using modern technology. In short, the less energy (or "influence") required from "outside sources" (electronic components), the higher the quality of total energy created by the system, everything else being equal. It's the classic "quantity versus quality" compromise and quandary.

To make my point as clear as I can, I need to use a highly unlikely scenario: Imagine a speaker with an unbelievable high-efficiency specification; let's say 130 dB/1 watt and, further, an ultra-low current requirement (while ignoring noise and other issues). Such a theoretical speaker could be driven by the preamplifier alone (or even the source*)! This scenario would actually eliminate power amplification all together. This is just a fantasy for now, but I'm arguing that even minor steps taken in this direction will have positive results.

*The ultimate scenario would be the phono cartridge directly driving the speakers, with the no electronics in between them. Only an attenuator would separate the two components. Anything else is a (necessary for now) compromise.

A Simple Conclusion

The less energy an audio system uses from "outside sources", the better chance that system has to be natural and faithful to the original musical source. So, the goal for serious audiophiles is simple: Reduce the energy required from your compromised outside power sources (AC), to the greatest degree possible. High-Efficiency speakers, more so than any other audio choice, achieve that goal.




CAVEAT-Please be advised that the readers’ letters posted on this site are solely the opinion of that reader and may not necessarily represent or reflect the opinions of Arthur Salvatore. These letters furthermore, are not to be taken as being endorsed by Arthur Salvatore. They are posted because they may be edifying, thought provoking or entertaining.

Further- Almost all of the Readers Letters that are removed from this file, after the standard 12 Month posting (such as the October/November 2017 Readers Letters), are subsequently posted in their respective Reference Component Files: Amplifiers, Cartridges, Speakers etc. They can be found under "Readers Letters". If the reader's letter discussed more than one type of audio component, I will place that letter in the file of the component that was the most discussed.


Nothing This Month.



Latest Updates

1. "The Truth" T4 - The T4 is now currently (January 2019) in my possession and has been fully broken-in. My associate, who actually owns the T4, has also now arrived in Florida, and we will thoroughly audition and test the T4 in late January. The report on the T4 will be posted in February 2019. I would like to post the T4 report earlier, and while this may still happen, the review of the component below (PRE MK. II) has precedence (and will be extremely time-consuming as well).

2. Coincident Pure Reference Extreme (PRE) Mk. II - The PRE II monitors were finally broken-in with over 370+ hours of play time. I have also now conducted all of my most challenging auditioning and testing on them. I am currently in the process of writing my report, with all the various results, observations and related thoughts and advice. This report will be posted in sections, beginning in early February 2019.

2. Coincident Statement Speaker Cable - The Statement speaker cables now have over 500 hours of play time. We will shortly make a direct comparison of the Statement with the Polk speaker cable and report back sometime in February 2019, along with a final summary of our Cable Survey, which began back in 2016.


The Weakest Link...

Cartridge Pins Connections

A few months ago, while casually listening to my system, going from CD to LP and back again, I slowly began to get the feeling that the records no longer had the sonic advantages I was accustomed to, despite the fact that no change had been recently made to either source. Was this my imagination or was it something else, rooted in reality? (I must first stress that I was not listening critically at that time, and definitely not directly comparing digital to analogue.) After some thought, I decided to conduct a minor experiment of sorts...

With the system shut down, I first removed the four cartridge pin connections and then immediately replaced them (without even cleaning the pins). I then turned the system back on and listened again to the same records I had most recently played. The Results - There was definitely a difference, and all for the better. The sound was a little cleaner, more immediate and with greater dynamic force. It wasn't a "big deal", but the improvement was still noticeable enough to replicate the sonic differences I had remembered and grown used to in the recent past.

After thinking about it a while, I realized that I hadn't touched (or "broken") the cartridge pin connections in something like 5 years. That's a long time, but not to be too hard on myself (or anyone else), it's very easy to overlook even the most critical connections when you are almost obsessively focused on other parts of your audio system, let alone the music itself.

So, if any reader is going through the same feeling I had; that their phono source is "falling behind" or sounding "stale", I would suggest looking at the cartridge pins connections, though always make certain that the system, or at least the amplifier, is shut down while doing so.

Audio Connections - The General Perspective

Virtually all audio connections can oxidize over time, which will obviously compromise them, so they must be "broken" first, and then re-attached, on a regular basis. Cleaning the connection is also sometimes necessary. The cartridge pins are usually the most difficult connection to maintain, and also the most vulnerable to damage (loosening) because of their tiny size, tight fit and delicacy, but they still require attention, as per my personal anecdote above. Just be ultra-careful, like a brain surgeon.

Finally, breaking and making a connection creates an unusually large electrical impulse, which is potentially catastrophic to the speakers, so the amplifiers should always be shut off (and discharged) during the entire process.




CAVEAT-Please be advised that the readers' letters posted on this site are solely the opinion of that reader and may not necessarily represent or reflect the opinions of Arthur Salvatore. These letters furthermore, are not to be taken as being endorsed by Arthur Salvatore. They are posted because they may be edifying, thought provoking or entertaining.

Further- Almost all of the Readers Letters that are removed from this file, after the standard 12 Month posting (such as the December 2017 Readers Letters), are subsequently posted in their respective Reference Component Files: Amplifiers, Cartridges, Speakers etc. They can be found under "Readers Letters". If the reader's letter discussed more than one type of audio component, I will place that letter in the file of the component that was the most discussed.


Nothing This Month.



An Important Development...

Coincident Pure Reference Extreme Mk. II Speakers


The (2017) Mk. II update of the Coincident Pure Reference Extreme (PRE) speakers is a serious and important improvement over the original model (which I've owned for almost a decade). In fact, the overall extent, scale and scope of the sonic improvements, provided by the Mk. II, are unusually large, and hence requires more than just a simple and cursory description.

Accordingly, the review/essay of the PRE MK. II below is my best attempt to provide a thorough, useful and relevant perspective of these new models for both an original PRE owner, and for all current loudspeaker enthusiasts as well.

My History with the Pure Reference Extremes

The "original" Pure Reference (a single enclosure, now long discontinued) joined my system in late 2007. The "Extreme" (two enclosure) version of the Pure Reference, which I had incessantly lobbied for, replaced the original model in late 2009.

Later on, in Spring 2010, I "doubled up" the Extremes, by stacking a second pair of the PRE on top of the first pair. Finally, in Spring 2017, I added a pair of Acapella ION Super Tweeters. Each of these three changes, all of which provided serious sonic benefits, are well documented, described and discussed in my PRE essay linked below.

All during the 8 years of the PRE's existance (2009-17), a number of minor changes were made to the speakers. However, none of these changes were truly significant enough, even cumulatively, to actually cause a change to the model designation. Finally though, in Fall 2017, it happened. Coincident made an announcement that a new version of the (two-enclosure) Extreme was now available. It was designated by the manufacturer as the PRE "MK. II". For all the important details of my history with the PRE...

Here is a direct link to My Comprehensive Essay/Review of the Coincident Pure Reference Extreme Speakers. I highly advise reading at least part of this earlier essay to fully understand and appreciate this current review, which is (or will be), in reality, just an (important) "Addendum" to the original essay/review. (Example; The original PRE review discusses my entire personal loudspeaker history, going back to 1972, amongst many other subjects and issues addressed about speakers etc.)

The Pure Reference Extreme Mk. II's Various Upgrades

According to a phone conversation I had with Israel Blume, owner and designer of Coincident, and later confirmed on the Coincident website, there are several changes to the original PRE (which he feels are of "significant proportions").

1. The new Coincident Statement cabling will be used internally.
2. The Accuton ceramic midrange and tweeter are the latest improved versions.
3. The crossover components are also improved, along with some slight adjustments for further improvements.

The subwoofer also has a new inductor and the new internal Statement cabling. The selling price of the new Mk. II is $ 29,995 for a pair, which is $ 3,000 more than the final $ 27,000 price of the original Extreme. Blume claims that his costs for all of the various Mk. II updates are "substantial".

It must also be disclosed that the PRE II, both the subwoofers and the monitors, were compromised in route by the shipper (UPS). I was able to repair (and even improve) the subwoofers on my own (with the assistance of a neighbor), but the PRE II monitors had to be shipped back to the manufacturer, since the work required greater skill and I also wanted to be absolutely certain that they would be performing at their highest potential level. Thankfully, the monitors arrived back quickly, and even improved as well, so it's another satisfying "lemons into lemonade" audio experience.

"Breaking-In" the new PRE Mk. II

I received the PRE II in February 2018. During the first listening period, between February and March 2018, I was only able to play the PRE II for less than 100 hours before I sent them back to the manufacturer. However, even then, we were still very impressed with them. When they returned, a long stretch of bad weather severely reduced my playing time, so it ended up taking more than 6 months for the PRE II to fully break-in.

I performed my most challenging listening tests and experiments when they reached 370+ hours. That number is the total hours of play from the time they were built. It even includes the hours they were initially used as demos by the manufacturer. While they were breaking-in, I could hear the PRE II improve over time, though most (and all) of the (significant) improvements were experienced in the first 200 hours. I felt the PRE II generally "plateaued" in performance once they were over 300 hours, and any changes I have observed after that were definitely subtle.

Important Note - All of the sonic descriptions of the PRE II, which can be read below, can only be completely verifiable if, and when, they are fully broken-in, as described above.

Direct Sonic Comparison - The "Original" PRE versus the new PRE Mk. II

My very first sonic impression of the PRE II, of any type, was that it was "more immediate". Further, in an interesting confirmation, an "associate" visited me around two weeks later, and that was also his first impression, at least verbally. As per my usual auditioning protocol, his statement was purely spontaneous, and conveyed without any prior request or description from me.

However, this was just the beginning, because the PRE II has many other important sonic improvements when compared to the original PRE...

Transparency, Precision, Speed and Detail - The PRE II has greater transparency, enabling much more musical information to be heard, and discerned, in the back of the recording space (which now sounds, by comparison, "illuminated"). It is also faster, more precise and more detailed than the original PRE, and the improvements in these general areas were actually large enough, in at least in one instance, to be observed in another room.

Homogeneity and Separation - The PRE II is less homogeneous than the original PRE, which was aleady excellent in this regard. Using different, though directly related, audiophile terms; the PRE II is superior in separating the instruments and vocalists, both in the front and the back of the soundstage/recording venue.

Sound-Floor - The PRE II also has a lower sound-floor than the outstanding PRE, so more of the numerous subtle sounds of the recording, which expose and reproduce the "individuality" of the musicians, instruments and recording space, are now audible. This is so important because, with a higher sound-floor, this information would be otherwise forever lost. To be clear, the PRE II has the lowest sound-floor I've ever experienced (with the original PRE now in second place).

Dynamic Acceleration and Shifts - In a related area to the above, the PRE II is also a little more "dynamic", with more convincing "shifts" and an even less "mechanical" sound than before. It is important to note that this was another attribute in which the original PRE was already exceptional to begin with.

Bass and Cohesion - Maybe the single most important sonic improvement was in bass/midrange cohesion, which I (and especially my associates) have long felt was the original PRE's most easily noticeable "weakness". This particular improvement requires a detailed explanation...

The bass of the PRE II is significantly more detailed, tight and controlled than the original model. The new subwoofer is also a better sonic match with the PRE II's new midrange driver. This occurs despite the fact that the new midrange driver is itself now faster than before. This could only mean that the subwoofer improvement is even larger, or at least more noticeable, than the corresponding improvement in the midrange, because the critical sonic/performance gap between them has been greatly diminished.

In fact, the bass/midrange transition (and/or "cohesion") of the PRE II is at least as good, and maybe even superior, to any other speaker I've ever heard using dynamic drivers. Further, though not nearly as easily noticeable, the PRE II's midrange/tweeter cohesion is also improved, which is a surprising sonic bonus, since the original PRE was already the best I had ever heard in that regard.

To summarize and clarify this critically important subject: The PRE II is, by far, and without a doubt, the most cohesive multi-driver dynamic speaker I've ever heard or, in other words, the PRE II is the multi-driver system which comes the closest to sounding like a single-driver system.

Finally, I recently went back to my original review of the PRE, and I would say that while it still holds up very well, despite all the system changes and experiences since then, the one prior evaluation I now regret is that I over emphasized the strength and accuracy of the subwoofer/midrange transition. The PRE's bass/midrange transition was, and is still, excellent, but it was not as good as I described back then.

Soundstage and Focus - The PRE II's soundstage is slightly larger than the original PRE, though it's not as large, nor does it have the "scale", as the original PRE when it was "Doubled-Up". (I would estimate that the PRE II has around 20% of the PRE's "Doubled-Up" soundstage enhancement.) Much more important; the PRE II has substantially improved focus, and its "sense of space" is also noticeably improved. The end result = The various musical recordings reproduced with the PRE II are more intelligible and organized.

Purity and Cleanness - The PRE was already noted for its purity, but the PRE II is slightly improved even in this regard. I can now only compare the PRE II's cleanness to electrostatic speakers, and even then only at their finest.

Naturalness - The overall tonal balance of the two models is nearly identical but, even so, the PRE II still sounds more natural. I believe this is because of the combination, and the accumulation, of its greater purity, a lower sound-floor and even fewer micro-deviations in its frequency response.

Also Important - What has NOT Changed with the PRE II

The most obvious similarity between the two models is their appearance; they are virtually identical, though I will attempt to find a subtle difference which would make it easy (if not definitive) to distinguish them from each other. Also, as I mentioned above, the "overall tonal balance" is basically identical and, if there is a difference, too subtle for me to describe, at least for now.

The frequency range of the two speakers is also very similar, though I feel that the PRE II is slightly more extended, and open, in the extreme highs. Also critically important from a practical viewpoint; the PRE II is just as sensitive and easy to drive as the original PRE, which means that no technical compromise has been made to achieve the superior sonic results.

Finally, to be clear as possible, the PRE II does not have even one disadvantage, even insignificant, when it's compared to the original PRE; in sonics, aesthetics or drive capability. (Though, of course, the selling price has risen.)

Listening to the PRE II Monitors "Solo"

I listen to the PRE/PRE II using the monitors "solo" (with the subs off) most of the time, and it's possible that other PRE owners share this proclivity to some degree, so it may be important for those listeners to learn that the PRE II monitors go a little lower in the bass. Accordingly, the PRE II monitors now sound more "full-range" on their own, though this is, obviously, a relatively minor advantage when compared to all of their other sonic improvements.

Further, it required around 300 hours of play before the PRE II monitors broke-in sufficiently to observe the improved bass extension. In fact, they actually sounded leaner in the first 100 hours or so of play.

The PRE Mk. II Vs. The Best Speakers I've Heard

In my initial review of a decade ago (links above and below), I compared the original PRE to the best speakers I had heard in the (generally accepted) most important sonic categories. Those performance evaluations will now be updated for obvious reasons, but my previous sonic "References" will not be changed, due to the fact that I haven't had the opportunity to hear, with my own ears, any improved standards during this period.

I have already sufficiently discussed several sonic categories above, so I will try to avoid repeating myself, but others require greater detail and perspective:

Immediacy and Purity - The PRE II is superior to any dynamic system I've heard in both of these categories, and it's extremely close to the finest electrostatics ever made (Martin-Logan, Audiostatics, Stax etc).

Soundstage and Focus - The PRE II is now "competitive" with, and only slightly bettered by, the finest omni-directional speakers in focus, such as the Morrison and MBL. In other words, the PRE II no longer has a noticeable disadvantage in this category, as did the original PRE. Further, its soundstage is as good as the finest I've heard. Bottom Line - With the exception of slightly inferior focus compared to the finest omnis, the PRE II is at least equal, and almost always superior, to any speaker I've heard.

High-Frequency Reproduction - The PRE II is improved in this area; in purity, speed and extension, but it's obviously not in the league of the best tweeter ever available; the Acapella Ion Super Tweeter. The PRE II has the finest dome tweeter I've yet heard, but I don't believe it is the very best available of its type either. However, none of the superior dome tweeters I'm aware of possess the core strength of the PRE II's tweeter, which is its unprecedented ability to provide a near perfect cohesive match with its corresponding midrange driver. This capability is much more important, in its effect on overall sonic performance, than just simply improved speed and extension.

Bass Reproduction - As I explained above, I overestimated the quality of the bass of the original PRE in my initial review. However, my evaluation error was relatively small, so it took a number of changes (improvements) in my system, over a 10 year period, to finally expose it. So, how does the PRE II's (improved) bass reproduction compare to the best I've heard, with my perspective of today? Actually, it ends up being in almost the exact same position as was the original PRE: The best, overall, I've heard. Why?

Further Explanation: The Original Apogee Speaker, now almost 40 years old, is still my ultimate bass frequency "Reference", since it is unsurpassed in all these important areas: Impact, definition, immediacy, control and linearity. The Apogee's only weakness is that it doesn't extend down to a useful 20 Hz. If it did, it would be "the best" period, even after all these decades, and without any qualification (except it is extremely difficult to drive). Of all the speakers I've yet heard, the PRE II comes the closest to the Apogee in its strengths, while simultaneously still extending down to a solid 20 Hz.

Tonal Consistency, Naturalness, Inner Detail, Transparency - The PRE was already equal to anything I've heard in all these areas, and the PRE II has even improved on those high standards.

Dynamic Response or Scale (Soft and Loud) - The best horns (Avantgarde Duo/Trio) still have an advantage in dynamic acceleration in the midrange and highs. However, the PRE II is dynamically consistent in the full-frequency spectrum, unlike horns, which almost always have dynamic response problems at lower frequencies. The PRE II is the most "dynamic" speaker I've heard full-range. I further believe that only the top Avantgarde models, and even then only with their "Basshorns", will outperform them in this category.

Sound-floor, "Completeness" and Low-level Information - The PRE II is the finest speaker I've heard in these related categories, period. (The original PRE was the best.)

"Individuation" - Is the vitally important (and rarest to achieve) ability to individualize each and every musical instrument, voice, recording space, LP/CD, and even each separate cut of a LP/CD. It is actually the end result of the cumulative ability to excel in each of the other categories already discussed above. The PRE was already the finest I've heard in this category and the PRE II is even better.

An Alternative Evaluation - Using Numbers (Instead of Words)

For some readers, it may be possible that a "numbers only" experiment will further clarify my sonic assessment of the PRE II. Why? Numbers are the most precise descriptive method possible if the goal is to objectively evaluate the performance of the PRE II in relation to all the other speaker I've heard. However, there must be a prior understanding that the numbers will also be completely consistent with my subjective (word) descriptions and evaluations, previously posted above.

First, the (completely arbitrary) parameters: Imagine 10 individual "Performance Categories" and a scale of "1 to 100" in each Performance Category, with "1" being "Atrocious" (or the worst performer imaginable) and "100" being "The Best Possible Performance" (at our current level of technology). This would mean that the highest total score possible (in theory, but not in reality) would be "1,000" (10 X 100).

Some Examples: Using this system, while also being consistent with my previous posts, the Morrison speakers would score the highest possible "100" in an "Imaging and Focus" category, and the original Apogee would also score a 100 in a "Mid-Bass Impact" category. So, using these categories and scales, where does the PRE II stand in comparison with all the speakers I've heard?

I have no idea what the PRE II's actual exact final score would be out of a possible 1,000, and I don't want to even take a guess at it. However, the combination of my experience with the PRE II, along with intellectual consistency, inevitably leads me to two strong convictions:

1. The PRE II will have the highest total score of any speaker I've ever heard (it will be the closest to 1,000), and from a more subtle (and contrarian) perspective, though maybe even more important to some ultra-critical listeners...

2. The PRE II's lowest individual score, of the 10 categories, will be higher than any other speaker's corresponding lowest score.

This is an important achievement, and much more than just a back-handed compliment. It means that the PRE II's most noticeable "Weakest-Sonic-Link" (whatever it is) will be less "noticeable" than any other speaker's "Weakest-Sonic-Link". In actual practice then, the PRE II is the speaker that is the least likely I know of to be "annoying" to an ultra-critical listener.

Upgrade Options for Owners of the Original PRE

There are three (major) upgrade options for the current owners of the original PRE. I have been fortunate to have experienced all three options in my own system over the last decade.
Here they are in the exact chronological order they were implemented by me:

Option 1. "Doubling-Up" the PRE by purchasing a second pair and then placing that pair on top of the original pair (both monitors and subwoofers).

Option 2. Adding the Acapella Ion Super Tweeters to the PRE (while rolling off the PRE's own tweeters at the same crossover frequency).

Option 3. Upgrading the PRE to the PRE II by sending them back to the manufacturer.

I have had extensive experience with all 3 options. Further, I can confidently state that each of the 3 options has large and, importantly, unique sonic attributes and advantages, which are not matched, or addressed, by the others. Accordingly, there can never be one "right choice" for everyone.

To simplify the three Options' respective sonic advantages, and the resulting audiophile dilemma:
Option #1 has an unmatched and thrilling sense of scale, size and weight, plus a deeply satisfying quality of "effortlessness", and even (3 db) greater sensitivity.
Option #2 is unmatched in openness and high-frequency purity, speed and extension.
Option #3 has the most midrange immediacy, best focus, superior reproduction of the bass frequencies and the most cohesive bass/midrange and midrange/tweeter transitions.

In short, no one option of the three will sound superior, overall, to other two options with all the vastly different types and genres of musical recordings, let alone their varying quality. This means that each of these three options, along with their sonic benefits, will also have inherent sonic compromises, which all serious audiophiles loathe.
So, if this will help, I will now answer "the big question": What would I do myself, if I was (theoretically) forced* to make only a single choice of the three available options?

After considerable thought, and even discussion, I would choose Option #3; upgrading to the PRE II. Why? In the end, it was actually simple for me: For most of the wide variety of music I play, and for the vast majority of time within these recordings, the PRE II will outperform the other two options. In fact, I actually slighlty prefer, overall, the PRE II (Option #3) to Option #1 and Option #2 combined.

What about Option #2? Not a chance. At best, the sonic advantages of the Ion Super Tweeters (with the PRE) would only be showcased and thus preferable, overall, to the PRE II, with some relatively rare recordings.

What about Option #1? This will be the really excruciatingly tough choice for many audiophiles. There is no doubt in my mind that on many recordings (Mahler, large symphonic works, rock concerts, some electronic music etc), the PRE "Doubles" will be more thrilling and satisfying overall than the (single pair) PRE II. Further, the "Doubles" have the extremely rare ability to "overwhelm" you, and this can be an exhilarating experience for many audiophiles. In fact, once experienced, being overwhelmed can be almost (literally) addicting.

However, for me (and I suspect a majority of serious music listeners), only a small minority of my large collection of recordings can take specific advantage of "The Doubles" sonic strengths in size, weight and scale. And further, I believe even those special recordings will still sound superior with the PRE II most of the time. It will usually only be in those "big moments" of the recording when "The Doubles" will really shine.

Still, I realize that Option #1 ("Doubling-Up") will be the best choice for those audiophiles who place the highest sonic priority on size, weight and scale, and/or whose dominant musical tastes (and corresponding music collections) favor the recordings that can take advantage of the unique strengths of "The Doubles". For these audiophiles, "The Doubles" will be their no-brainer first choice and their only logical and satisfying option.

*I, very fortunately, do not have to make this awful (and even cruel) choice. I already own the Acapella Ion Super Tweeters and I also plan to eventually purchase a second pair of the PRE II, allowing me to then double them up. (Yes, it is actually "cruel" after you have heard all three options in your own system!)

Summary and Conclusion

The Coincident Pure Reference Extreme Mk. II is an significant improvement over the original PRE model. This review explains the critically important "why" and "how" details of the PRE II sonic improvements. Further...

The PRE II is the least compromised commercial speaker system I have yet experienced, of any type and at any price. To be clear, with the majority of my recordings (both analogue and digital), and during the majority of the time, I prefer the PRE II to my previous "Ultimate Reference": The "Double PRE", even with the Acapella Ion Super Tweeters. Also important, the PRE II is just as easy to drive (SET friendly) as the original PRE.

Finally, I always make an effort to avoid repeating myself, but I am not able to improve on the conclusion of my original PRE review (links above and below), so here it is, with some minor updates and edits:

"...I feel it is possible, and necessary, to condense the entirety of this review into two simple sentences, which are both personal observations and opinions:

1. The Pure Reference Extreme Mk. II does more things 'right' than any other speaker I've heard (it's the most 'complete' or 'natural').

2. The Pure Reference Extreme Mk. II also does less things 'wrong' than any other speaker I've heard (it's the most 'accurate')."


Addendum: My PRE II Future

As outstanding performers as they are "stock", and as dominating as I feel they are at their current price range, it is still important to note that the PRE II is also not a "dead-end" purchase. This is a significant factor for those serious (and even obsessed) audiophiles, like myself, who are always looking for further improvements, or the "next step", in the near and/or far future, no matter how currently satisfied they are with their system. The details...

The PRE II can still be noticeably improved with the Acapella Ion Super Tweeters. I already know this for a fact, from my direct experience (see below), and I've further had three veteran listeners observe these specific super tweeter improvements for confirmation. It's true that these particular ion super tweeters will be expensive, and they will also be a hassle to optimize, but when any system, such as the PRE II, is already at the highest level of audio reproduction, further serious improvements are rarely easy and economical.

Then there's another improvement, which I have not heard yet. This improvement will most likely be even more easily noticeable than the super tweeters, and even more important in the reproduction of music. Unfortunately, it will also be much more expensive to implement. Of course, I'm referring to a second pair of the PRE II, which will be stacked on top of the first pair (as I did with the original PRE).

A "Double PRE II Super-System", as I have just described, already exists. It is currently being enjoyed by Israel Blume, the owner of Coincident, and also the fortunate guests (and customers) who have the opportunity to visit him. To relay our relevant conversations: Blume is convinced that "doubling" the PRE II makes an even larger and consequential sonic difference/improvement than doubling the original PRE and, of course, he has heard both respective "doublings" extensively, since he has actually lived with them. Accordingly, then...

My Obvious PRE II Future - I will eventually join Blume's (presently) exclusive "PRE II Doubles Club", though I don't know when this will occur. I do promise that when (not if) this happens, I will report back with all the pertinent details.

Addendum 2: The PRE II with the Acapella Ion Super Tweeter

I installed the Acapella super tweeters two times; first at around 100 hours of play and later at around 400 hours of play, when I felt the PRE II was basically fully broken-in. I used the same 5K crossover point as before, and once again positioned the super tweeters on the top of the subwoofers, with similar isolation platforms.

In both instances, the sonic improvements were heard immediately, and the ion tweeters were an even better cohesive match than before. However, the degree of improvement was not quite as large, or as easily noticeable, as it was with the original PRE. I assume this is because the new PRE II tweeter has superior high-frequency performance, which thus slightly reduces the previous sonic performance gap between them. This then inevitably brings us to...

"The Big Question": Are the Acapella Ion Super Tweeters still worth it with the PRE II? Yes!

Addendum 3: Further "Gut" Details with Specific Recordings

I used numerous records and CDs, over many months, to make my sonic evaluation of the PRE II. I also kept some detailed notes on a few of my most critically important reference LPs, which were evaluated only after the PRE II was completely broken-in. I always keep my listening notes completely private, since they are my initial, unfiltered and spontaneous "gut feelings and thoughts".

However, I have decided to experiment in this review and share my private notes with the public for the first time. Why? I believe it's possible that some readers may gain further insight into my evaluation and thinking process, as well as enhance their interpretation of this PRE II review.

The notes were all written down during the actual auditions, and without any edits. I realize that these notes may be confusing and/or difficult to understand for some readers, since they are without any context and/or perspective, with atrocious grammar, and also written in figurative "shorthand", but they should all be consistent with the edited descriptions of the PRE II posted above. So, the readers of this section can now decide whether an act of self-indulgence, and being actually helpful, are mutually exclusive, or not...

Listening Sessions: January 1 & 2 2019 - Late Evenings

Medieval Xmas Music/Nonesuch - echoes and decays are incredible! - separation of chorus!

Sing We Noel/Nonesuch - 1st Cut- "Continuousness" analogue strength

Lucia Hwong/House Sleeping Beauties/Private - "sense of space", In general - like (ZYX) UNI 1 Vs. UNI II - Greater Precision and focus and Immediacy - Less diffuse than "doubles"

Arabo-Andalusia/Harmonia Mundi - always an improvement, sometimes top to bottom, sometimes just focus - bass! - Lower, softer listening levels never so realistic and satisfying

Thibaut/Harmonia Mundi - difference between lps/cuts easier than ever to hear

China/Vangelis/Polydor - focus during movement - 1st cut!

Pfitzner/Songs with Orchestra/EMI Germany - still missing size and scale and weight compared to "doubles"

Other Random Listening Notes - Without Specific LPs - Most cohesive 3-way I've heard - bass decays ultra-defined, with impact and power - "illumination", like a light turned on in the back - both "big picture" and tiny details are "there" and obvious - the more "legato", the greater the sonic differences between analogue and digital - never felt more "transported to LIVE" - Analogue vs Digital: analogue still has advantage in "continuous presence", PRE II makes this more obvious.

Bonus! - Direct Quotes from my (most Ultra-Critical) "Associate" - "amazing change"; "a major achievement"; "Better in every way"; "Faster and more open"; "largest improvement in midrange, plus bass transition"; "tweeter improvement is much smaller, and not as important".

Addendum 4: Current Upgrade Pricing Details

Work In Progress!

Relevant Links:

Coincident Speaker Website with Further Information

My Comprehensive Review of the Coincident Pure Reference Extreme Speakers

My Audio System




CAVEAT-Please be advised that the readers' letters posted on this site are solely the opinion of that reader and may not necessarily represent or reflect the opinions of Arthur Salvatore. These letters furthermore, are not to be taken as being endorsed by Arthur Salvatore. They are posted because they may be edifying, thought provoking or entertaining.

Further- Almost all of the Readers Letters that are removed from this file, after the standard 12 Month posting (such as the January 2018 Readers Letters), are subsequently posted in their respective Reference Component Files: Amplifiers, Cartridges, Speakers etc. They can be found under "Readers Letters". If the reader's letter discussed more than one type of audio component, I will place that letter in the file of the component that was the most discussed.


An Important Update...

Doge 8 Preamplifier

I recently received this letter from Doge Audio, which concerns the latest news on their well-known and outstanding preamplifier, the Doge 8. There's some minor editing and my bold:

"Below are some updates for the Doge 8 that you might like to include on your website, the main one being:

The new link (the old one is defunct) for the Doge 8 is: Doge 8 Preamplifier

The 2019 version has the following improvements which address some of your criticisms:

-UK Clarity Cap ESA model coupling capacitors.
-Adjustable sensitivity, impedance and capacitance for the phono stage.
-A fixed level output in addition to the two variable level outputs.
-A factory fitted tube upgrade option to Psvane TII tubes at a competitive cost.

On a personal note, I use the latest version of the Genalex Golden Lion 12AX7 in the phono stage of my Doge 8 to very good effect and at an affordable price. Its performance certainly surpasses the performance of my erstwhile BAT VK-P5 phono stage in every respect, but especially in that of reducing the noise floor.

Also, I have recent reports that the latest Electro-Harmonix Gold 12AU7 EH (available in limited quantities) approaches the sound of some NOS tubes at a fraction of their price. Maybe one to mention to your associates to look out for?"


Alternatives to...

"The Bolero Test"

I devised "The Bolero Test", in the early 1990s, as a safe and definitive method to discover, in your own system, if the volume of the source(s) is able on its own, without any gain from a line stage, to reach a satisfying level. The test's main advantage is that it can be conducted without (and BEFORE) making a purchase, or any change in the system. The Bolero test requires only tape outputs on a preamplifier (or a mute on a phono stage) and a minimum of audio experience. The reader below has some further information, which was new to me. There's minor editing, and my bold...

"I read the Bolero test and would like to suggest an alternative. There are many basic passives out now that are less than $50 and you can DIY a basic unit for about $20. My first passive cost me $2 for a basic Alps pot. I got 4 RCAs from my junk box. Here is the $49 Schiit Sys, which is a usable introduction to the passive sound.

Replace the current volume control or preamp with the basic passive. One at a time connect your sources and see whether you can reach your preferred volume or not with each device. Once you have that knowledge, you can decide if any of your sources need to be replaced and evaluate your cost of going passive. This way nobody will be taking a chance on missing a step in your Bolero procedure.

My two main sources have 15 ohm (phono) and 200 ohm (DAC) outputs going into 100K Consonance Cyber 211 monoblocks, so I am definitely in the passive camp."

Personal Reply - The reader's suggestions are alternatives only. Why? They do not replace "The Bolero Test", because they require some (minor) expenditure, extra cables and, in once instance, DIY skills. However, his alternatives are still of value since, as he points out, they are now economical and also much more easily available than they were 25+ years ago.

Relevant Link:

REFERENCE LINE STAGES (includes "The Bolero Test")


Counterpoint SA-220 Power Amplifier

Decades ago, I was a Counterpoint dealer. I felt at the time, and still do, that they were a highly innovative and value-priced company. I was very sad when they closed down, and I've been on a "mission" since then to ensure that they will never be forgotten. Recently, a long-time reader sent me an email with information that may prove useful for the owners of some of their excellent amplifier models. Here it is, with some minor editing and my bold:

"...My current system consists of a Rega Planar 3 into an Aragon 47k; A Theta Data into an Aragon D2A; those feed the Perreaux SM6 preamp which feeds the pair of Counterpoint SA-220s (as detailed later). Speakers are Thiel CS 2.2s.

Back in the late 80's/early 90's, I bought (new) one of the Counterpoint SA-220 amps. It was from a retailer in CT (I can't remember their name) in a converted old house. So they had several listening rooms, set up in a real house. That was a cool concept that worked well.

Anyway, I went there to audition a pair of B&K monoblocks, which they had modified. At the time, that was the 'hot set-up' as reviewed by Stereophile, whom I was subscribing to at the time. They had them warmed up and ready to go for me, in a small room. It was wide, but the system was across from a couch on the long wall, so distance to speakers was small-ish. (I recall it twice as long as wide)

I brought my (still) reference CD of Robbie Robertson's first record (1987) and listened. It sounded good- certainly better than the Hafler amp I was using at the time. But there was a big, black amp on the rack, sitting cold and idle. So I asked about it. 'That's a Counterpoint. Very nice amps but they require us to sell so many units per month to retain dealer status, an we don't operate like that.' Long story short; I auditioned it, ice cold (only allowing the requisite warm-up mute period) and W O W was I blown away. Yes, it was a bit more (they did discount is slightly to move it), but it was another plane of existence. Same system and room otherwise- just the amp changed, Night and day.

Fast forward a few years and after a move, it wasn't working. So it went back to Mike Elliot for repair. It was an inexpensive repair (broken wire connection) and came back STILL not working- same connection from the transformer was a hair short, and would break during transport vibrations. I fixed it myself with his guidance, and it has been fine (including a couple moves) since. I added some silicone o-rings on the tubes because I got them free from work, and I had the top open anyway. Did it do anything? Who knows...

As you probably know, these can be bridged to monoblocks as well. Something ridiculous like 600W into 8 ohms or something. Borderline welding power supply. Anyway, I happened across a slightly newer (than mine) second SA-220 and contacted Michael to see about possibly upgrading them both or other options which might be available to me. He let me in on a secret- I don't know if this applies to all power amplifiers, or just his design*...

I am using a Perreaux SM6 preamp (which I thought I learned about from your site years ago, but I don't see it there now**) and all the inputs are single-ended; however, it has a set of balanced outputs. From these, I had some Mogami cables made which terminate with un-grounded (shield is floated at the amplifier end) RCA connectors. Per Michael's direction, I connect the "+" to the R+ input and the "-" to the L+ input. Speakers are connected to the "red" output posts respecting similar polarity as input.

This essentially creates a 440w monoblock, rather than bridging, which as I understand bridged amps, also doubles the noise and distortion of the amp. Using this method, the noise and distortion stays where it was/is and the available output power is increased.

A little background: I'm a drummer. Have been since age six in all sorts of bands marching, concert, jazz, progressive rock etc. I have a very good understanding of how a bass drum SHOULD sound. They have a whole lot more 'life' to them than one would be led to believe. Subtle harmonics across the sonic spectrum. Point: This is the first time I have heard bass drum reproduced convincingly. I think, if one has this amp, and can find another (in good shape) wiring them this way is well worth the price of admission."

*Caution - Make certain that the circuit of any Counterpoint amplifier is similar to the SA-220 before attempting the reader's wiring experiment.

**I was also a Perreaux dealer in the 1980s. I was impressed with how natural they sounded, especially compared to other transistor designs of their day. Even today, their power amplifiers and preamplifiers (as phono stages) are still listed as "References".


More to Come!

"The Truth" T4 Line Stage

Coincident Statement Signal Cables



These are the most recent LPs to join The Supreme Recordings. They are too new to place in one of the two upper categories, and there usually aren't any detailed descriptions ready either at this time.


The Basic List



This album is both a direct-to-disc and a 45 RPM, which means it has a greater sonic potential than any other LP format, now or ever before. It is also all-analogue as well and mastered by Bernie Grundman, so the expectations for this record could not be higher, which is why I decided to give this album extra prominence.

The sonics are indeed outstanding overall, with exceptional immediacy, especially of the female voice, and it also has excellent detail and purity. Unfortunately, there are also noticeable sonic problems which keep it from the higher categories. The sound floor is low, but not ultra-low. There is also a lack of natural body, solidity and harmonic bloom, and while the dynamic shifts are good, there is still noticeable compression when compared to the finest records. Direct example...

Just before I played this album, I played the Eiji Kitamura "Swing Sessions", a legendary Japanese RCA Direct-to-Disc from 1978 (KITAMURA-SWING SESSIONS-RCA RDCE-10), which is in "The Divinity" of The Supreme Recordings (the highest category). With the exception of pure immediacy, the RCA/Kitamura "wiped the floor" with the Bisson Trio LP. The dynamic qualities and pure naturalness of the Kitamura were simply in another league.

So while this album obviously has excellent sonics, it is ultimately a "disappointment" considering what it could have been. And that was the exact word used by an associate, who purchased the album (at an exorbitant price) and eventually heard it (and the Kitamura) with me during his annual visit. On a positive note...

I've read some reviews of this album which criticized the pressing as "very noisy", but that was not a problem we experienced. The pressing was excellent and never an issue for either of us (though we did not play all four sides).

Bottom Line & My Advice - I would not pay serious money for this album if the primary goal is to experience the highest level of sonics from a phono source. There are simply too many other records that are superior to it in overall sonic results, despite their far less imposing pedigree and ambitions.


Also joining "The Basic List" this month:


*A digital recording, but it still has natural and outstanding sonics. It is excellent in every area.

MARCH 2018

The Honorable Mentions



As far as I know, this Mercury recording of "Americana", from their "Living Presence Golden Age" (SR90018), never actually made (the late) Harry Pearson's "Super Disk List", but it was still promoted in The Absolute Sound (TAS), by Sid Marks, as a superior recording. I no longer have any clear memory of hearing the original Mercury pressing of this recording, but I have heard the Golden Import reissue (SRI 75050), which is pretty good. However, the "Sketches" are not nearly as good as Walter Piston's "The Incredible Flutist", which is on the same LP. In contrast, this new Speakers Corner reissue is dedicated exclusively to the "Symphonic Sketches", as was the original Mercury pressing from 60 years ago now, which means it enjoys a serious technical advantage. Curious, we compared the two reissues with each other. The results...

The Speakers Corner reissue was more natural that the Golden Import, which was somewhat dry sounding and, to pile on, the high frequencies were also noticeably exaggerated. We couldn't find one sonic advantage for the Golden Imports LP. Still, despite having a number of desirable sonic attributes common to most good Mercury recordings, this recent reissue is not one of their best efforts. The Chadwick is not quite as immediate, detailed and clean as the finest Mercury recordings. It also sounds rolled-off in the high frequencies, plus the sound floor is too high to hear the subtleties which distinguish the finest recordings. These sonic problems keep this reissue from joining "The Basic List". As for the Chadwick composition, it is definitely "Modern", but still quite accessible and not "avant-garde" in any manner.

The Basic List



This Mercury recording basically matches the above description of its Chadwick sister record, with the only serious difference between them is that this LP (as well as the original SR90103) has two compositions instead of just one. The Golden Imports reissued the McPhee composition (SRI 75116) and the Sessions (SRI 75049) composition on two different records. Since I have both of the Golden Imports reissues, we, of course, had to directly compare the three records.

The McPhee reissues sounded very similar, though the Speakers Corner was (again) more natural sounding (with more body), but this time the Golden Import did have its own sonic advantage; the Speakers Corner sounded relatively congested (homogenized) when the orchestra played loud. So, in the end, it was a mixed bag between them. However, this Speakers Corner reissue also includes the rare Sessions "The Black Maskers" recording. This time the Speakers Corner reissue has all the desirable qualities of the earlier Golden Mercury reissue (which is already in "The Basic List"), but with, again, greater natural body and it was even less homogenized as well, making it a total success.

As for the music, which is modern but still accessible, I enjoyed both compositions and especially the "Tabuh-Tabuhan", which I feel is somewhat different than the other Mercury recordings of modern music, probably due to its exotic and ethnic source and inspiration (Bali). So, I highly recommend this reissue for those adventurous readers who are searching for interesting 20th Century Music from composers who are not well-known, and who also require outstanding sonics as well.




The Basic List



*A direct-to-disc from 1982, which I never heard (in my own system) until 2018. It is outstanding in every sonic area, and especially so in its dynamic impact (the percussion in particular). This LP should end up in the higher categories, though not at the very top. The music is light jazz, with only the very beginning of the first cut (on side one) sounding anything even remotely related to "the Andes".

Further Decca/London Experiences

Twenty years ago, I was ridiculed by some "audiophile LP collectors" for claiming, based on my numerous experiences, that there was no inherent difference between Decca and London pressings (outside of the normal and inevitable variances in any pressing runs). It took a while, but eventually a growing number of other audiophiles confirmed my observations, and further definitive evidence, directly from the manufacturer, closed the issue permanently (outside of "dead-enders"). Below is further evidence on this (formerly controversial) issue (my bold).

Letter Audiogon: July 10, 2018

"I was taking an electrical engineering degree at Imperial College in London during the early 1970s and I had the opportunity to work for Decca at their New Malden plant during one summer vacation, basically acting as a gopher in the pressing plant.

I can state categorically that the same stampers were used for both the Decca and London pressings at that time and the requests for metalwork often included both the US and UK labels in the one invoice- which explains why both issues often have the same stamper codes in the inner section.
I know of at least one copy of such an invoice which definitively proves that there is no difference."


Reader's Letters - Concerning Decca/London Vinyl Quality

Letter One:

"I was rereading your... (Decca/London Classical) LP evaluation on your site, and noticed one thing from the “middle British” section that I would like to amend.

The vinyl also looks inferior on these earlier pressings, it's not quite as black, as though the vinyl wasn't as pure. In any event, the later pressings, both the British and Dutch, are generally much quieter and allow more low-level musical information to be heard.

The 'not being quite as black' probably has nothing to do with the quality of the vinyl, and probably has everything to do with with the pigment. The 'blacker" records may have more carbon black pigment in them, or they may be using a higher quality of black pigment that is more 'blue shade' instead of 'yellow shade'. Blue shade blacks are more expensive pigments (finer ground and more intense) that are used in automotive applications, whereas the yellow shades are used in cheaper industrial coatings.

Now, there may be a real reason that the 'blacker' ones may sound better. Carbon black is very acidic, and it can act as a catalyst for the vinyl resins, promoting a tougher surface (tougher being as how a material scientist would look at it). I have noticed that the artistic albums, especially the clear ones w/o any carbon black in them, do not sound quite as good. Off the top of my head, one album is a newer Chicago pressing comparing it to a track from a black vinyl, older pressing, comes to mind.

I love your album evaluations maybe even more than your equipment comments. Even 20 years ago, I never really understood what the big deal sonically of the early Decca/London recordings. I had recordings from the mid ’70’s from them that were sonically superior, in my mind. Yet popular belief was that the earlier ones were better."

Letter Two:

"I did a few searches on the net, and this was very interesting.

I liked this one because it was a combination of peoples’ experience and some expert comments. The evidence in these posts actually support my hypothesis that cure is extremely important in record quality, and carbon black assists cure in the formation of a record.

I looked at some comments on some small manufacturers that stated it was only the vinyl formulation that mattered. Looking at the small amount of data they released, I feel that they came to the wrong conclusions. Being a former coatings chemist, I realize that most formulators tend to ignore the influence of pigments on their final formulations. It is much, much easier to assume that the pigments have no effect on the final formulation. I have found that not to be the case, especially with red and black formulations."


In 2019, I will finally finish an unprecedented cable survey that began in 2016, plus the updates on "The Truth" line stage. The Coincident Pure Reference Extreme has also been recently updated, so there will be a multi-part report on the new model (the MK. II). The first installment will be posted sometime in the Fall.



The Last Chapter...

Charles Hansen's Final Posts on Audio Asylum (Critic's Corner)

Charles Hansen, of Ayre Acoustics, died on November 28, 2017. I barely remember Hansen when he was with Avalon Speakers decades ago. I was not one of their dealers and we never formally met. In more recent times, specifically since 2007, Hansen has had a strong animus towards this website, and myself personally, due to a comparison review that I edited and posted (though I did NOT participate or otherwise contribute to), in which an Ayre digital component had performed poorly.

Hansen never forgave me for posting that article and has attacked me continuously, in personal terms, since then. I replied directly to Hansen's first attack in 2007, but I have simply ignored every one of his many other personal attacks over the last 10 years. I, and many other audiophiles, found those posts repulsive, malignant and ignorant, and I did not want to dignify any of them by a response.

However, this status changed in the fall of 2017. On September 18 to be exact, Hansen attacked me personally once again, but this time I responded to him for the first time in 10 years, and with no restraints. I have no regrets concerning my final correspondence with Charles Hansen, despite its ugliness. I would have done exactly the same even if I had known that Hansen's death was imminent. Why? Because I feel that any public letter, which maliciously and unfairly abuses someone, and even further claims that some deliberately misleading anecdotes are actual historical facts, should be challenged, and not be simply excused or ignored. In the final analysis, a person's imminent death doesn't grant that person some once-in-a-lifetime license to write whatever they please, and without any risk of consequences.

However, this short article is not concerned with the brief and sad history of Charles Hansen and myself. It is instead concerned with a larger and much more important perspective...

Charles Hansen's final posts, written during the last month of his life, were different, in kind, than any of his previous posts. In fact, looking back now, it would not come as a surprise to discover that Hansen was aware of his imminent death, because these final posts were amazingly direct, frank and naked. They were completely fearless, disclosing thoughts and opinions, previously private, which could even make potential enemies out of former audio friends. So this profound change in Charles Hansen's level of restraint and inhibition is the actual reason I posted this article and the related links below.

Here are some of the examples of Charles Hansen's final thoughts on various audio topics, unedited, in italics, with my bold. They were written in direct response to an earlier post from John Atkinson, the editor of Stereophile:

1. Stereophile and Mark Levinson Components:

When you (John Atkinson) only give Levinson gear to Larry Greenhill for review because you know in advance that he will do nothing but heap praise upon it, does that help or hurt the high end?

Levinson came out with the $4000 No.38 preamp, which used the same cheap op-amps as the $700 Adcom of the day...(and) with a really stupid (and really cheap) volume control...that sounded terrible...Robert Harley gave it a decidedly mediocre review in August embarrassed Levinson had to redesign it as the "S" July 1995, you gave it a rave review. Your rave is still up on the Stereophile website, but Harley's dismissal of the original version is MIA...Is that deliberate or accidental?...And did your rush to do damage control on behalf of Levinson help or hurt the high-end industry?

All of the 30 seres (sic) products were a large step backwards - except for the digital products, which had never existed in the 20 series. But not according Larry Greenhill who was duly assigned to review the later Levinson products and never met one he didn't fall in love with. Did Stereophile help or hurt the high-end industry with this type of coverage of the Levinson 30 (and later) series?

2. John Atkinson's UK Bias:

I can't imagine that most of your readers haven't noticed your bias for UK (or UK-designed) products.

3. "MF's" (Michael Fremer's) Bias for:

a) The more expensive the product, the better it must be.
b) Wilson loudspeakers are the best on the planet, presumably because they play really loud, have super spectacular bass thump created by the +10dB bump they all exhibit at 70Hz, and are ungodly expensive (see (a) above).
c) Turntables that follow the exact design principles of his current favorite super-expensive turntable that nobody else has ever heard, as they are so expensive that they aren't even in dealer's showrooms.
d) Hyper-detailed phono cartridges that are spectacular for one song, fatiguing to listen to in the long term.
e) Anything that he currently "owns". It's especially obvious when he concedes that something sounds pretty much as good as what he owns, but since the retail price is much higher for what he owns (or has on long-term loan), he's going to stick with it. (Any normal person would sell the expensive product, buy the cheaper product and buy music with the savings. But MF must either enjoy the prestige of the "Rolex factor" or be bound by accommodation purchase agreements, or afraid to piss off the guys who gave him the long-term loans.

Is that good or bad for the high-end industry?

4. Herb Reichert:

I can say that Herb listens to a HIGHLY colored system that is likely to only sound good with other components that are also HIGHLY colored in complementary ways. After reading that review I couldn't help feeling that it said more about Herb and his idiosyncrasies than it did about the amplifier. (LTA ZOTL40 power amp)

5. United States Audio Press:

...(what) the whole world is demanding today, more than anything else is for people to stand up and tell the truth. Unfortunately for high-end audio, it seems to me that less and less of that comes from the US print press...

All of these above direct quotes of Charles Hansen are included in the Link #1, which I recommend reading in full. Link # 2 was an earlier post by Hansen and not as comprehensive, but it still proves that his later post wasn't a "one-off". In fact, in this earlier post he characterized current Stereophile content as "trite pablum".

Link #3 was my last reply to Charles Hansen (and John Atkinson), after they both personally attacked me even though the original poster's topic was simply an innocent enquiry about my absence this last summer. Hansen's gratuitous personal attack is a sobering reminder that it's possible for even the most rational person to become unhinged when consumed with blind hatred.

I will retain this article and Hansen's two complete posts as well. Charles Hansen's final thoughts, posted in public, are informative and important statements concerning contemporary audio journalism, and they will not pass away with him.

Relevant Links:

Link 1. "Stereophile Reaches a New Nadir..."

Link 2. Charles Hansen's Earlier Post on John Atkinson and Stereophile

Link 3. My Last Response to Charles Hansen (and John Atkinson)

2018 Addendum

There is a recent thread in Critic's Corner which discusses the above article. Below is a partial sample of a post by one member (in italics), which I felt should not be ignored:

Posted by jamesgarvin (A) on February 7, 2018 at 11:12:37
In Reply to: Not sure what you mean. posted by Rick W on February 6, 2018 at 09:23:48:

"...(Arthur) Salvatore...cites (Charles) Hansen's criticism of Stereophile, without mentioning that Hansen essentially did the same thing Salvatore accuses (Wes) Philips (sic) of doing - which is formulating an opinion and then keeping quiet while the shortcoming exists. I just find it ironic that Salvatore uses a source (Hansen) to support his argument when Hansen basically did the same thing as the target (Stereophile and Philips) of Salvatore's arrows.

The irony is with respect to Salvatore is that he claims folks like (Wes) Philips (sic) kept quite (sic) regarding their issues with a product due to commerce, but then cites as support for criticizing Stereophile a manufacturer who did the very same thing. I hope Salvatore is not the only person who fails to see the irony."


My Response to James Garvin's Post:

James Garvin is a long time and dedicated defender of John Atkinson and Stereophile on Audio Asylum. In this post, Garvin actually equates the actions of Wes Phillips and Charles Hansen, both of whom are now dead. This latest "argument" (actually a distraction) completely ignores the historical facts, as usual for Stereophile defenders, which I will now do my best to rectify.

Wes Phillips was employed by Stereophile as an audio journalist, and he was supposed to work exclusively on behalf of his readers. That was his responsibility. Phillip's deliberate deception, and lack of disclosure, within his WATT/Puppy 5 "review", was a blatant betrayal of those same readers. In stark contrast...

Charles Hansen was an audio engineer/designer employed by Ayre Acoustics, which is an audio component manufacturer. Hansen had no public duty or responsibility to disclose his true critical thoughts about Stereophile, its reviewers, reviews and audio journalism in general. To do so could have created mutual animosity and compromised Ayre's sales and even its viability.

There can be no "irony", because "keeping quiet" for Wes Phillips was a serious betrayal to those who depended on him, which is the worst thing you can do in professional life, while "keeping quiet" for Charles Hansen was necessary for sheer economic survival. In fact, one could confidently argue that Wes Phillips would have "kept quiet" about the WP5's faults until he retired or died. He was only forced by new circumstances to disclose those faults and "come clean". Why? Phillips had to criticize the WP5 (in public) or else he couldn't explain why/how the WP5's replacement model, the WP8, was an improvement worthy of purchase. Meanwhile, Charles Hansen had no compelling reason, other than satisfying his conscience, to open up at the end of his life.

To equate these two men's respective actions, in any manner, is an insult to both Charles Hansen and the concept, and the critical importance, of journalistic responsibility, which Wes Phillips disgraced in his WATT/Puppy 5 "review", and John Atkinson (as Editor) enabled and fully countenanced.

The bottom line concerning this subject is simple: Charles Hansen, in what turned out to be his proverbial "deathbed confession", finally disclosed his highly critical thoughts about Stereophile, its reviewers and audio journalism in general. Any other irrelevant "side issue", designed only to qualify this important fact, is a distraction, period.

Finally, to answer the related question: Is it "ironic" that Charles Hansen, of all people, ended up confirming my negative opinion of Stereophile? Yes, I believe it is, but any irony has nothing to do with Wes Phillips, whose treacherous actions have earned him a well deserved membership in "The Audio Journalists Hall of Shame".

Relevant Links:

James Garvin's Complete Post

Wes Phillips WATT/PUPPY 5 Review - Stereophile November 1995

Wes Phillips WATT/PUPPY 8 Review - Stereophile June 2007

My Original Criticism of Wes Phillips WP5 Review

My Criticism of Wes Phillips Late WP5 Disclosures (In WP8 Review)



Nothing at this time.




Cymbiosis Linn LP-12 Guides (Linn Sondek LP-12 Set-Up Guides) NEW 02/18

MARCH 2018

Denon Aluminum Body (Aluminum Body Cap for Denon DL-103/R) NEW 03/18

JULY 2018

Thus's Audiophile Magazine ("Reviews of Classical Music Records") NEW 07/18


Audio Reputation (For audio beginners and those who are headphone oriented.) NEW 08/18

Contrast Audio (Ukranian Manufacturer of Interesting Speakers) NEW 08/18


Copper Magazine (A very interesting audio magazine from PS Audio.) NEW 09/18


ALK Engineering ("Specializing in filter design software and Klipsch loudspeaker upgrades".) NEW 01/19


Doge 8 (Doge 8 Preamplifier) NEW 02/19



Coincident Pure Reference Extreme Speakers

The Coincident Pure Reference Extreme (PRE) has been my personal reference speaker since 2009. They are in excellent condition and have never been abused in any manner. I am selling them for only one reason: To replace them with the newest model, the PRE MK. II (see the related link below). I originally had two pairs of the PRE, stacked, but one pair has already been sold.

The PRE is rarely for sale on the used market. In fact, I haven't seen a used PRE for sale in literally years. This is not surprising, because of the PRE's outstanding overall performance, value, practicality and sensitivity (see the link below for my PRE review). In the rare event a PRE is being sold used, it's almost always because of some peripheral, life-changing or domestic issue and not because of any audiophile dissatisfaction with its performance.

However, there is one issue with this PRE. The cosmetics, specifically the front veneer panel joints on the two subwoofers, are second-rate (see pictures). This cosmetic problem has no effect on the sonic performance of the PRE, obviously, but it will still require some rudimentary woodworking (sanding, staining and re-oiling) to bring them back up to par. Accordingly, I will offer a generous allowance on the selling price.

According to the manufacturer, the price for the used Pure Reference Extreme pair, if it was in excellent cosmetic condition, would be $ 14,750. However, due to the cosmetic flaws, I am reducing the price to $ 12,350, a savings of over $ 2,000, which can then be used for a local woodworker. For those who are handy, it's a $ 2,000+ savings for a simple DIY woodworking job. Some audiophiles, like myself, may not even be bothered by the cosmetics.

Further Thought - Some audiophiles will understandably prefer to purchase the Pure Reference Extreme Mk. II, but don't have all the required funds, $ 30,000, so here is a practical idea. The Mk. II could be purchased in two steps:
1. The PRE Mk. I above, for $ 12,350, and later...
2. The Mk. II factory upgrade, which costs around $ 8,500, making the...
Total Cost = <$ 21,000.
Not only does this method avoid one large expenditure, it even provides the additional bonus of a $ 9,000+ (30%!) discount from the Mk. II's original selling price.

Caveat - The PRE speaker system, which is two subwoofers and two monitors, does NOT include either the stands for the monitors or the spikes for the subwoofers.

Shipping (390 lbs) of the PRE is extra. The PRE is located in Florida (34986). Local pickup can also be arranged.

Relevant Links:

My Comprehensive Review of the Coincident Pure Reference Extreme Speakers

Coincident Speaker PRE MK. II Update Announcement & Further Information



P1010807 P1010808



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