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  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  (Reviews | Threads | Answers | This Thread)

02-28-07
  Responses (1-50 of 297)
Click title to read one, or click date to read all below it.

02-28-07   Do you think alex will accept my 2003 bmw 330ci in trade for ...   Tvad

02-28-07   Nice job! i wish more people who had the means would do thi ...   Kublakhan

02-28-07   What is the brand/model of the power regenerator that was us ...   Nsgarch

02-28-07   Pete, i am intrigued by your observation that "i had th ...   Drubin

02-28-07   Did you do any level matching during your tests?   Ghostrider45

03-01-07   Good report. i would have enjoyed participating. regards,   Metralla

02-28-07   Was any listening done with the apl direct into the amp, byp ...   Krisgel

02-28-07   In my posting, i mentioned that, after the blind shoot-out, ...   Petewatt

02-28-07   You described the variables (the players) nicely, thanks. ho ...   Tedmbrady

02-28-07   Meitner or meridian signature? in listing the digital gear i ...   Foster_9

02-28-07   Pete, first of all, thanks to you and the other members of ...   Earflappin

02-28-07   What a great write-up and a fabulous, state-of-the-art shoot ...   Groberts3

02-28-07   Call me a skeptic, or whatever you wish, but the little hair ...   Ngjockey

02-28-07   Is it the best results of apl nwo player come out when conne ...   Audiosu

02-28-07   Nsgarch, the power re-generator was ps audio. regards, ale ...   Aplhifi

02-28-07   Pete, thanks to you and your friends for orchestrating this ...   Earflappin

03-01-07   call me a skeptic, or whatever you wish, but the little hair ...   Audiofeil

03-01-07   Clarification and more: the last sacd test pete is talking ...   Aplhifi

02-28-07   Ghostrider45, level was matched precisely using pink noise c ...   Aplhifi

03-01-07   disclaimer: this is not advertising but the actual truth! d ...   Audiofeil

03-01-07   Call me a skeptic or whatever you wish but the little hairs ...   Soundmagic

03-01-07   Sorry soundblunder, i don't rep any of the products in the s ...   Audiofeil

03-01-07   I would love to conduct a similar shootout, but with players ...   David12

03-01-07   Interesting a/b results. exactly how are they significant? ...   Newbee

03-01-07   An interesting test. i wish i had been there. with regard to ...   Tbg

03-01-07   Sorry audiovile, but for full disclosure you should point ou ...   Soundmagic

03-01-07   I am lucky to have been a part of this san diego event and i ...   Ctm_cra

03-01-07   Tbg - two of the five voters own apl modded denon 3910. ale ...   Ctm_cra

03-01-07   Thanks for all the clarifications. as for my questioning, i ...   Tedmbrady

03-01-07   but for full disclosure you should point out that you do rep ...   Audiofeil

03-01-07   This thread didn't start off appearing as a sales pitch. it ...   Tvad

03-01-07   The fact that there were audible differences in such high qu ...   Shadorne

03-01-07   Alex, was the level matched on spl or voltage? if voltage, ...   Bob_reynolds

03-01-07   Interesting that the last to be tested was the preferred. r ...   Tlday

03-01-07   I had no intention to belittle the effort or sincerity. with ...   Ngjockey

03-01-07   Bob_reynolds - level matching was done for each pairing usin ...   Ctm_cra

03-01-07   Lots of hand wringing and nitpicking over a listening sessio ...   Tvad

03-01-07   Tvad, i agree. this is about a close to an interesting test ...   Tbg

03-02-07   Imo, just two tracks (and both classical at that) are not en ...   Nilthepill

03-01-07   Ctm_cra, thanks for the additional details. was the preamp a ...   Bob_reynolds

03-02-07   Tbg - the apl unit with its volume control and line input ca ...   Ctm_cra

03-01-07   Really great test and write up. thanks for taking the time t ...   Scottr

03-02-07: Mrtennis
what predictive value is the result of a listening session ? the sample size is very small and one cannot be confident of agreeing with the majority.
Mrtennis  (Threads | Answers | This Thread)


03-02-07   Mrtennis, of course you may not agree with the majority. sho ...   Tbg

03-02-07   One could not be confident of agreeing with the majority eve ...   Drubin

03-02-07   Interesting. how many hours of operation had been previousl ...   Guidocorona

03-02-07   Shadorne - "the fact that there were audible difference ...   Ctm_cra

03-02-07   I am very appreciative that this comparison was done; it di ...   Jfz

03-02-07   Intriguing but not entirely relevant. not description was in ...   Essentialaudio

03-02-07   do blind tests really matter in the world of high end audio ...   Chadnliz


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