Thanks for your thouhts. My room is actually rather large - 16 x 25 x 8. I was thinking maybe it is the opposite problme - too big. I will say that of the speakers I've used, open baffle seem to have the most promise. Maybe that's due to the radiation pattern of that type of speaker. I should probably try a sub again, but I've never had much luck integrating them so they don't sound boomy.