I am looking to buy a subwoofer for my house and need some advice. My budget is $600-900 and willing to spend the latter if it’s a great deal. The room size that it will go in is 12 L x 20 W x 8 H. My Primary uses of the HT will be more so for Movies and TV. It would be about 70% TV/Movies, 20% Gaming, 10% Music. I have on major obstacle that I am not sure what to do about. The room that I want to put it in opens up to another room and not sure what sub or Subs that I need to keep great acoustics for the room. I have a couple of Questions. First, given the room size what would be great sub to buy? Considering sub positioning, is there any spot that should I position it for optimal sound to counter the opening to the other room? And, is it recommended to buy two?