Bikerduck says the problem followed the speakers so I don't see how it could be the room acoustics. This may seem obvious but did you remove the protective cover on the RAAL's? When I first got my Sierra 2's, I neglected to do that and was scratching my head wondering why did people rave about these speakers, especially the tweeters? Then I discovered my mistake, removed the covering, and heard why there were so many raves about them.