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
Hi John, now I'm intrigued by the Amperex PQ 7062 tube. Honestly, I haven't done any tube rolling since I've been quite happy with the APL Denon performance. I've been looking at other areas of my system to improve on.

Do you have any good sources for this tube? I did a quick Google search and came up with eBay sellers, but I'm hesitant to go the eBay route.

Thanks again for sharing your findings.

Gary
Post removed 
Mr Nil- Unfortunately, the difficulties of arranging a comparison like that, via a CDP, would be almost insurmountable. What with setting up and verifying the accuracy of a reference system, finding the best set-up and positions for the mics/musicians/listeners, the performance, recording, mastering(or not), burning/pressing and playback chain: What an ordeal. The best we can hope for? Opinions from educated listeners, that remain immersed in the sound of live music, and are intimately familiar with the "cues" you mentioned. Better yet- That attended the recording sessions and are familiar with the artists and venues on the discs they are listening to. Way too much to hope for. I'll just have to keep doing it on my own! Enjoy your music!!
Thanks Tvad for your post. I tried to make it clear here that the 7062 tube was not supported by Alex.

I have great respect for Alex and his work but to say that the sonic changes of the 7062 are due to its non-linearities and thus colorations compared to the ECC99 do not reflect my observations in the APL Denon nor the Aria WV. If colorations here implies several layers of haze and grain are removed and much lower level detail coming to the forefront, compared to the ECC99, I'll take it.

As for the added output impedance, it's a non issue with the input impedance of the Aria WV. Alex is a proponent of his players straight into the amps. This was not the preferred case when I had the Callisto Sig, Bent TVC and now with the Aria WV as well. And a number of NWO owners I have corresponded with have all preferred their players into their line stages as well.

For those with APL Denon players running the ECC99, enjoy and feel comfortable. But after hearing the 7062 and then again trying the ECC99, I would move on from the APL before I returned to the ECC99. It might be a readily available tube, as is the 6H30, but neither of these tubes is my cup of tea.
Post removed