Harry Lavo wrote:

In this test. That's all you can say for sure. However it is not an
uncommon phenomenon in abx testing. Sean Olive reportedly has to screen out
the majority of potential testers because they cannot discriminate when he
starts training for his abx tests, even when testing for known differences
in sound.

Sean Olive doesn't do ABX tests. He doesn't "screen out" potential
testers, either; the article Sully referred to used a couple of hundred
listeners. What he has done is assembled an expert listening panel,
specially trained to identify specific differences in frequency
response. That's a tough task, and not everyone can do it, even with
training. But it has nothing to do with either ABX or preference
testing.

This is the second time in a week you have misrepresented Mr. Olive's
work, Harry. I suggest you ceasse referring to it until you learn
something about it.

bob