Correct. This is all in a high detailed paper from Dr. Toole and Olive. You can see a snippet of it here: http://seanolive.blogspot.com/2009/04/dishonesty-of-sighted-audio-product.htmlSo if two people have wildly different subjective opinions about a pair of speakers, we can put that down to the other equipment in the chain, what music was played, room acoustics, etc.? Because in practice these opinions aren't usually formed in a controlled environment.