here is a study that compares different speakers in different rooms. I don't have a copy of the study, so I can only comment on the summary.
in the regression analysis, the room was an insignificant factor. this doesn't mean that the room didn't alter the sound of each speaker. it simply means that the same speaker preferences were present regardless of room.
it is always possible that he just didn't pick the right room to change the rank order speaker preferences, but that kind of feels like a stretch.
also, not directed at archaea, just because a set of speakers (or eq curve, or whatever) are preferred universally in a statistical sense, it doesn't mean that everybody likes the same thing. those are two completely different concepts (and I see them frequently muddled together). the former is a statement about the average opinion and the evidence is pretty strong that can be predicted. the latter is a statement about individual opinion and that has been and always will be all over the map.
This is from Toole's Sound Reproduction
, which itself summarizes the findings presented at conference.
Sean E. Olive, Peter L. Schuck, Sharon L. Sally, and Marc Bonneville. 1995.
The Variability of Loudspeaker Sound Quality Among Four Domestic-Sized Rooms
Audio Eng. Soc. 99th Convention, preprint 4092