I have a PB12-ISD and love it. I have it paired with Axiom Audio Mains, surrounds, and center. For the money, SV Sound subs can't be beat. If you have the room, go with the cylinder subs. I have a couple of friends that own them - one has the 16-46, and the other has the 20-39. They put out unbelievable low bass, but are big and take up a lot of space. You won't go wrong with either model.