Aarrrgh!
Going back to your earlier question, the research shows that in the case of loudness differences of less than 1 dB between two speakers that are NOT detectable by listening (but which are measureable with a broadband pink-noise test signal), the louder of the two speakers will be perceived as sounding "better". I don't recall details of how that was defined.
At the NRC, we also found out that if you have a cold or sinus congestion, the reliability and consistency of blind speaker ratings goes out the window. The same can be said of using alcohol or weed before listening tests.
In the latter case, subjects became much less critical and even piece-of-crap speakers were highly rated, simply because the music simply sounded so great while the subjects were under the influence. . .
Cheers,
Alan
