Right now I'm using a Sony SA-WM40, and its a good sub and all, but its too loose and boomy. Even with the polyfill mod, its just too much to handle. I'm looking for a much tighter sub that will give a better thump for music, but still go down nice and low for movies. Plus, 12 inches is a bit big to carry around. So can anyone recommend a good, TIGHT 8 or 10 inch sub? I'd prefer to keep it under $200 if I can, although I'd be interested to hear what goes for $250 or so. I'm not trying to bring the house down here, I live in a small tiny college dorm room, so wattage and volume really isnt that important.