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In Reply to: RE: Stereophile blind tests = rare..... 62% reporting "differences" when amps are compared with themselves = news posted by Richard BassNut Greene on June 29, 2007 at 14:22:59
The last time I tested an amp against itself I heard a difference.....
Most amps sound quite different 15 minutes later relative to when they're first turned on.....
This is why most listening tests should be done with the amps running at least a couple hours.
And I think this is why people tend to hear "improvements" from tweaks..... And why people tend to prefer "B" over "A" when doing an "A-B" evaluation. (How often do you read about a tweak making things sound worse?)
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