I have a home theater system with in-wall speakers brand CSI, and a klipsch center channel speaker. The receiver is Yamaha KV-596 I am now looking for a subwoofer and have heard very good things about Klipsch. My room is about 22x24 feet and the ceiling is 19 feet high (the room tends to be very boomy/ echo-ie. Would it be better for me to get the KSW-15 or the KSW-12? It would be used for both music as well as HT. My main concern is the boominess, but I also don't want to buy a subwoofer that is too anemic for those HT movies! Is Klipsch the best brand for this room?