I'm helping a friend. He has a new drum kit, and wants to play it while watching iPod videos on his HT projector. Yes, I've talked to him about the danger of high SPLs. I'm actually purchasing a set of Pro Audo speakers for the non-movie times so he can hear music while playing. I am going to replace the sub as well and will need some pretty good volume from the sub. Fairly large room, about 15 x 30. Want to stay with just one sub. Size not an issue. I want this to go with the theater system as well, so want it to be decent, (so would like to stay away from Pro subs if possible) but keeping up with the pro speakers is first priority. Budget is in the $700 to $1000 range. Suggestions greatly appreciated.