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In Reply to: RE: harmonic distortion does not get 'buried in the mix'. posted by villastrangiato on July 4, 2012 at 19:41:28:
In this thread you've provided nothing in the way of concrete data or measurements to back up your outrageous assertions concerning the alleged superiority of tube amplification or the failings of designs employing significant amounts of negative feedback. Every single post you've produced has focused on pure conjecture and anecdotal BS. There really is no mystery concerning the BS that the "high end" amplifier industry relies on for its survival. Claimed differences in sound were debunked long ago. And tube fanatics refuse to conduct blind tests or endorse the results of such testing like this famous one:
http://www.hometheaterfocus.com/receivers/amplifier-sound-quality.aspx
Obvious troll comments aside, I for one welcome double blind testing, nor have I anywhere asserted the superiority of tubes- that is something that you made up in your mind. I do not feel that tubes are the only way to go by any means. What I am interested in is not generating the distortions to which the ear is most sensitive: IM and odd-ordered harmonics. That is perhaps easiest done with tubes but can be done with transistors as well, though most designers prefer not to jump through the hoops needed. IOW, you are the one being presumptuous and insulting with your comments above.
It seems that you are shilling for a bit a paper with meaningless specs, hoping that because it looks good on paper it must therefore be state of the art, which is almost never the case as the specs used by the industry do not have much to do with human hearing/perceptual rules.
"When it came down to the blind A-B testing of the 25 testers, only 3 participants scored 60% or greater correct when they guessed which amp was which, when comparing between two. Nobody got higher than a 63% score. Most amazing was that in testing between the Pioneer amp and the Futterman array, only 114 of 212 listeners could tell the difference -- thats a 54% correct guess! This is the most extreme example: audiophiles not able to tell the difference between a $200 Pioneer receiver and a $12,000 separate mono-block tube amp array with separate power supplies."
Actually, I would have said that this was perfectly predictable, as the Futterman amplifier employs a large degree of feedback like the Pioneer. Both are trying to be Voltage Sources and the feedback needed becomes the primary distortion source, which is to say that nearly all distortion is gone save for trace amounts of odd ordered distortion, which the human ear uses as loudness cues. I would IOW, expect them to sound very similar, which is to say both bright and harsh.
You did not address the human hearing rules in your post so I have to assume that you did not run the test. This unfortunately appears to have been predictable as I pointed out in my prior post. The issue here is you have more invested in making me wrong rather than dealing with the facts, so much so that you are willing to embarrass yourself to do it.
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Follow Ups
- RE: harmonic distortion does not get 'buried in the mix'. - Ralph 09:29:27 07/05/12 (3)
- RE: harmonic distortion does not get 'buried in the mix'. - villastrangiato 19:57:03 07/05/12 (2)
- RE: harmonic distortion does not get 'buried in the mix'. - PaulF70 07:28:10 06/17/16 (0)
- The human ear is the most important thing in audio - Ralph 07:48:20 07/07/12 (0)
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