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Double-blind test of Mini-disc and CD

One of the four double-blind ABX tests I participated in was
a Mini-Disc recording versus the original CD in the early 1990's when mini-disc was relatively new. No audio club member could hear a difference while listening to music.

Special test signals always had an audible difference.

Eventually one song was found where a difference was sometimes
audible.

Solid-state amplifiers rarely sound different when not clipping
and playing music at the same volume. This is true of my own ears under double-blind conditions ... along with a dozen other audio club members.

CD players rarely sound different when playing music at the same volume. This is true of my own ears under double-blind conditions
... along with a dozen other audio club members.

Most important:
Audiophile who claim "I know what they hear" ... are almost always proven wrong when they are courageous enough to listen with the identities of the components hidden, and A-B volumes carefully matched, minutes after claiming to hear differences under sighted conditions. I have personally witnessed this effect many times ... and have experienced it myself.

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