Собственно, субж. Лично для меня объективным критерием истины по данному вопросу будут результаты двойного слепого теста, потому как всякие IMHO, основанные на голосах, которые всякие ушастые эзотерики постоянно слышат, как-то не ибут. Погуглив, нашлось это:
Еще некоторое кол-во всяко-разно слепых тестов (в том числе и усилителей):
В общем, на данный момент ответ на поставленный вопрос такой: скорее "да" чем "нет".
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| 1987 Stereo Review controlled test: #From: "Sebastien P. McIntyre" <N...@music.mus.polymtl.ca> #Newsgroups: rec.audio.opinion #Subject: Re: Stereo Review BLT's of amps (LONG) #Date: 17 APR 96 15:09:28 EST #Message-ID: <17APR96.16370544.0...@music.mus.polymtl.ca> # # Two kinds of listeners: Believers (believe that amplifiers sound # significantly different) and Skeptics (are skeptical of that claim). # # 15 Believers and 10 Skeptics. # # Mr. Clark was hired as a consultant by Stereo Review to design and # carry out the controlled listening tests. # # Five power amps and one receiver were compared (quoted prices are # those of January 1987): # # - Julius Futterman OTL-1 (80-Watt mono tube amp, $12,000/pair) # - Mark Levinson ML-11 (50W/ch, #2,000) # - Counterpoint SA-12 (tube-SS hybrid, $995) # - NAD 2200 (100W/ch, 6-dB dynamic power, high current/voltage, $548 # - Hafler DH-120 (62W/ch, $320) # - Pioneer SX-1500 (45W/ch receiver, $220) # # The _opinions_ were that differences existed and could be heard. # However, statistical interpretation of the _results_ of these # controlled listening tests led to the conclusion that correct # answers to "Which source, A or B, is identical to X?" were made # by chance -- amplifier sound differences could not be heard to # statistical significance, let alone psychoacoustical significance. # # | | | % Probability # | No. of calls | | result # Amplifiers | (Correct/Total) | % Correct | due to chance #________________________|_________________|___________|_______________ # Counterpoint vs. NAD | 30/48 | 63 | 5.6 # Futterman vs. Hafler | 28/48 | 58 | 16. # Futterman vs. Pioneer | 114/212 | 54 | 15. # Futterman vs. Levinson | 106/204 | 52 | 31. # Hafler vs. NAD | 63/128 | 49 | - # Levinson vs. Hafler | 40/84 | 48 | - # Futterman vs. NAD | 14/32 | 44 | - # Pioneer vs. Levinson | 4/16 | 25 | - # # NOTE: The Counterpoint-vs.-NAD test results were the closest to # statistical significance with a just a bit over the 5% # probability that results were due to chance. But the # Counterpoint power amp blew up during the test, so it can't # be ascertained if its last breathe was abnormal and could # have influenced the results. # # # The results suggest that for these amps, listeners and setup, # differences between amp sounds were very small or nonexistent. # Because sound differences were small, test results based on # small numbers of trials are less reliable than those with large # numbers of trials (for the same comparison). Pure guessing gives # a 50% score (similarity to coin flipping). |
В общем, на данный момент ответ на поставленный вопрос такой: скорее "да" чем "нет".
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