These SVS subs are too powerful!!! Man, I've fallen back in love with my sub, and it's the lowest on the totem pole (25-31pci). I relocated my theater to the living room while my basement theater is being remodeled, and OH MY GOD!! The bass response I'm getting from this sub being on the first floor is insane!!! I mean I had to turn the gain down and recalibrate, because my living room is smaller than my basement theater. My theater in the basement is 11'(w)x 28'(l) x 7.5'(h), my living room is 11'x18'x9', and it sounds so much better up there. I'd like to have a bass head explain that one further to me. I finally understand what you guys were talking about when you said clean acturate bass, one reason is because my basement theater walls are not solid, and the drop ceiling seems as if it's going to fall apart when the sub is going. So, the reason I say you guys are insane is beacause I have the lowest of the low with SVS, and most of you have the plus's, and ultra's, and etc. You guy's are crazy, I can't imagine getting more bass than what the lowest one is putting out. I thought about moving up and going dual, but this one by it's self already is so loud upstairs (when listening downstairs), shaking windows, doors, and pictures. Help me understand what going up in class with SVS does, when does it become splitting hairs, or just plain insanity. Because I know you guys have better constructed theaters than mine, and some of you have them in living rooms like mine is now, but your pushing so much more sub than me, what's gives?