Just noticedlast night that when I walk into my sweet spot, the bass disapears. I have monitor audio GR60's in a 10X24 room. They are about 8inches form teh side walls and a foot from the rear wall, slightly toed in torwards my couch. Im using a 49tx and sunfore cinema grand to power them. When Im staning at the side of teh room, the bass is strong..when I move to the middle, teh bass dispaears.