I've had similar problems, but have worked them out. You have to be able to move the speakers out from the back wall a little, and also you need at least 16 inch ASC Tubetraps in the corners behind the speakers. First, you need the Sheffield "My Disc" CD, with third octave pink noise tracks in the bass range (and rest of the range). Also, you MUST have a continuously variable phase control on your subwoofer. If you don't, you'll never get it dialed in for all types of music. You also need to experiment with the sub's placement, and how you aim it once you get it there. IF YOUR WIFE WON'T LET YOU DO ANY OF THIS, then either move to a dedicated room, listen with headphones, or get her hypnotized. Audio Systems that fit into the decor of any room aren't worth listening to, because you're compromising physics for good aesthetics. You need to decide how much you like listening, and how badly you really want to improve your system's sound. NOT EASY NEWS TO HEAR, BUT IT'S THE TRUTH NONETHELESS...Good luck.