Do you really want to go there?
- Please point me to these tests.
- About the statistics, how big was the test sample, what were the selection criteria for the test panel? Where there “untrained” listeners included? What are the criteria for a “trained” ear?
- About the test, was it announced to the test panel what would be tested? If so, expectation bias must be factored in.
Furthermore, there is a whole branch of science (neuropsychology) that researches the human brain’s interaction with the physical world. This includes how the human brain processes sound (psychoacoustics).
Then there is the fact that the human body is not a precision instrument. My system doesn’t sound so good today. The sound stage shifted a bit to the left. That’s logical because I’ve got a bit of a cold and my right ear is a bit stuffed.