Blind listening comparisons

[GregLee]

Do people other than scientists actually turn their listening rooms into test chambers?

I'd guess not so many, counting audio engineers as scientists. I think I profit by blind testing, though I've never done any myself, because my favorite speaker company, Axiom, is said to make extensive use of blind testing in their product development. There is lots of interesting detail, also, on Dr. Sean Olive's blog Audio Musings, of Harman International, from which one can gather that doing it the right way, the way the pros do it, takes a tremendous investment of equipment, expertise, and time+effort.