The above suggestions are all excellent, but (and I hate to bring this up) I wonder whether those speakers are just plain too large for your new room, both physically and in the bass they produce. A smaller, stand-mounted speaker (for example, B&W 805Ns) might be able to give you much of your imaging and soundstaging back, as they would enhance the possibility of nearfield listening, and a good sub, if necessary, could add any bass you felt was missing (in a small room, you really may not miss the additional bass the 802s produce). If your speakers are new, any way your dealer can make this happen without a loss to you? Otherwise, I'd suggest setting them up on the long wall and adopt a nearfield listening spot to get back your soundstage, although I think you may have some bass problems depending on how close to the back wall you have to sit. Can't help you on the brightness, I agree with Buckingham, I find B&W's bright, but that's a personal bias and maybe breakin will ameliorate the problem. Good luck!
