Blind Shoot-out in San Diego -- 5 CD Players


On Saturday, February 24, a few members of the San Diego, Los Angeles and Palm Springs audio communities conducted a blind shoot-out at the home of one of the members of the San Diego Music and Audio Guild. The five CD Players selected for evaluation were: 1) a Resolution Audio Opus 21 (modified by Great Northern Sound), 2) the dcs standalone player, 3) a Meridian 808 Signature, 4) a EMM Labs Signature configuration (CDSD/DCC2 combo), and 5) an APL NWO 2.5T (the 2.5T is a 2.5 featuring a redesigned tube output stage and other improvements).

The ground rules for the shoot-out specified that two randomly draw players would be compared head-to-head, and the winner would then be compared against the next randomly drawn player, until only one unit survived (the so-called King-of-the-Hill method). One of our most knowledgeable members would set up each of the two competing pairs behind a curtain, adjust for volume, etc. and would not participate in the voting. Alex Peychev was the only manufacturer present, and he agreed to express no opinion until the completion of the formal process, and he also did not participate in the voting. The five of us who did the voting did so by an immediate and simultaneous show of hands after each pairing after each selection. Two pieces of well-recorded classical music on Red Book CDs were chosen because they offered a range of instrumental and vocal sonic charactistics. And since each participant voted for each piece separately, there was a total of 10 votes up for grabs at each head-to-head audition. Finally, although we all took informal notes, there was no attempt at detailed analysis recorded -- just the raw vote tally.

And now for the results:

In pairing number 1, the dcs won handily over the modified Opus 21, 9 votes to 1.

In pairing number 2, the dcs again came out on top, this time against the Meridian 808, 9 votes to 1.

In pairing number 3, the Meitner Signature was preferred over the dcs, by a closer but consistent margin (we repeated some of the head-to-head tests at the requests of the participants). The vote was 6 to 4.

Finally, in pairing number 5, the APL 2.5T bested the Meitner, 7 votes to 3.

In the interest of configuration consistance, all these auditions involved the use of a power regenerator supplying power to each of the players and involved going through a pre-amp.

This concluded the blind portion of the shoot-out. All expressed the view that the comparisons had been fairly conducted, and that even though one of the comparisons was close, the rankings overall represented a true consensus of the group's feelings.

Thereafter, without the use blind listening, we tried certain variations at the request of various of the particiapans. These involved the Meitner and the APL units exclusively, and may be summarized as follows:

First, when the APL 2.5T was removed from the power regenerator and plugged into the wall, its performance improved significantly. (Alex attributed this to the fact that the 2.5T features a linear power supply). When the Meitner unit(which utilizes a switching power supply) was plugged into the wall, its sonics deteriorated, and so it was restored to the power regenerator.

Second, when we auditioned a limited number of SACDs, the performance on both units was even better, but the improvement on the APL was unanimously felt to be dramatic.
The group concluded we had just experienced "an SACD blowout".

The above concludes the agreed-to results on the blind shoot-out. What follows is an overview of my own personal assessment of the qualitative differences I observed in the top three performers.

First of all the dcs and the Meitner are both clearly state of the art players. That the dcs scored as well as it did in its standalone implementation is in my opinion very significant. And for those of us who have auditioned prior implementations of the Meitner in previous shoot-outs, this unit is truly at the top of its game, and although it was close, had the edge on the dcs. Both the dcs and the Meitner showed all the traits one would expect on a Class A player -- excellent tonality, imaging, soundstaging, bass extension, transparency, resolution, delineation, etc.

But from my point of view, the APL 2.5T had all of the above, plus two deminsions that I feel make it truly unique. First of all, the life-like quality of the tonality across the spectrum was spot-on on all forms of instruments and voice. An second, and more difficult to describe, I had the uncany feeling that I was in the presence of real music -- lots or "air", spatial cues, etc. that simply add up to a sense of realism that I have never experienced before. When I closed my eyes, I truly felt that I was in the room with live music. What can I say.

Obviously, I invite others of the participants to express their views on-line.

Pete

petewatt
Onhwy61 - the value of this shootout, at minimum, will help those who can afford ultra high end CD players - possibly by adding one or more players to their list of must-demo units prior to making their purchasing decision. If I were in the market for a player in this price range, I would make sure I listened to the APL NWO2.5T (and others) before making my purchase.
Agreed, and if I were in the market for a $25K front end you better believe that I would spend the $ to fly wherever I had to, to hear the players in a system that was similar to mine, or have them shipped in.
Socrates, please don't confuse the recording process with reproduction process. For example, DSD is a great format for recording/archiving, but it's a REAL challenge when it comes to reproduction (D-A conversion) because of the huge amount of in-band noise which calls for the use of FIR and Analog low -pass filters. Every filter design will sound very different.

If you theory was correct, then Ed Meitner of EMM Labs would stick to the off-the-shelf Burr-Brown DSD1700 DSD DACs for his products and will not go into the deep trouble to design his own DSD DAC/filter which, according to many audiophiles and recording engineers, is quite better performer compared to the older non-Signature model.

If you take SACD that was made 3 years ago and play it on EMM Labs non-Signature D-A combo and then on a Signature D-A combo, you will get quite different sound, apparently much better with the new Signature edition. Why is that? According to your theory many should buy non-Signature and Signature EMM DACs and keep track about when the particular SACD was recorded so they can hear the sound the way it was intended. :-) Also, many should have a Teac DVD-RA1000 too. :-)

As for your other theories, you may also have an explanation why 15 audiophiles using 4 totally different audio setups concluded the same results?

Very interesting!

Regards,
Alex
Socrates - Thanks for your post. I would really like to respond. However, I just do not quite know how to [no joke and with a very sincere approach] without the risk of this thread going off to tangents, that although related, would take the focus away from what Pete and our group intended in sharing our findings with this community.

You raise some VERY IMPORTANT topics:
1) digital gear that recording engineers use (i.e. - gear with which the music was created, master, mixed, engineered, approved, etc on,),
2) what the engineer intended,
3) coloration-of-choice,
4) pro reviewers who actually engineered the track.

To these I ad the following:
A) on a given track, if the mastering engineer is different from the recording engineer, whether or not they share the same goal(s)
B) one's definition of the "live event" (as simple and as personal as this is, it really needs to be further clarified/defined by each audiophile)
C) one's goal in setting up his 2 channel system relative to how one defines B) above.

I have great interest in all these topics and the potential controversies surrounding them. So if you are in the southern Calif. area please email us and schedule a time listen to some great music, perhaps attend a live event, grab some chow, have some wine (or microbrew or fine port, tequila, rum or single malt), and continue to discuss these excellent topics.

I do want to say that in sharing the process and results of our comparisons with members of this forum, our goal is NOT to declare some absolute '"truth" and absolute "facts" on "the best" and "winner[winning]" pieces of gear'. Additionally, none of us have claimed, in this thread or elsewhere, that we are 'some great audiophile expert, a golden ear, or an all-star “truth-hearer” in the "field"'. As to what all these comparisons ultimately mean? Well, my take on it appears in the last three paragraphs of my reply to Essentialaudio on 03-02-07.

We would, however, like to accomplish more than just amuse or entertain forum members. In fact a secondary, but VERY IMPORTANT, purpose of ours is to obtain suggestions on what improvements can be implemented when we do this or similar future blind evaluations. Some of the above discussions have helped us in this regard. So we look forward to hearing your and the other members' recommendations.

Kind regards.
Greetings,
I wanted to thank the forum members who independently contacted some of the participants involved in this comparison. They provided excellent suggestions we can use in our next blind evaluations.

Pete says hi. He contacted me from a cruise ship, from which he admits, "It's very difficult, expensive and slow to stay [on the internet]".
Best regards!
As the author of this thread, and with the passage of a few weeks,I would like to make three retrospective comments.

First of all, I want to thank all of you for your inputs, views and opinions. Unfortunately for me, almost immediately after my original post, I left the country for a month-long cruise. And given technical difficulties, black-outs and the high cost of internet communications at sea, I was unable to participate in the dialogue that ensued. Having said that, I feel that we are all fortunate that ctm_cra, who was the prime technical architect behind the blind shoot-out, did such an extraordinary job of filling in all the details and answering your questions.

Second, in my opinion, the value in this exercise is not just the comparison of top-of-the-line CDPs as objectively as possible. I stongly feel that our blind shoot-outs (and we've done more than one in San Diego) point out the fact that, though difficult to set-up and administer, such comparisons are not beyond the compentence of knowledgeable audiophiles. Perhaps, this observation will not go unnoticed by professional reviewers and editors in both print and internet published audio guides. The fact that these guides have been very reluctant to do so-call "double blind" comparisons before may or may not have anything to do with philosophical or financial considerations. I just think that this is an idea whose time has come.

Finally, having participated in this experience, I cannot tell you how much pleasure I derived from the opportunity to listen to some of today's top CD/SACD players. As I said in my original report, the dcs standalone, the EMM/DCC and the APL NWO 2.5T were all were deemed to be outstanding. But the fact is that one did come out on top -- the APL NWO 2.5 -- and it did so in convincing fashion in the eyes of the consensus of our group. I mention this in part because I recall one excellent question raised in an earlier post: i.e. if one player is viewed as clearly superior, wouldn't we expect to see one or more of the participants in the shoot-out purchase it? Well it's now been six weeks since the event, and I can report that three of the participants have since ordered 2.5T's from APL. One was the Meitner owner, another brought both the dcs and Meridian players, and myself (I traded in my APL Denon 3910 with custom linear power supply).