I currently have the PS1200v3 in hometheater set up. I am satisfied with the job it does with movies, but I am unable blend sub with my speaker while playing music. I have tried moving the sub around the room, lowering the bass out put, and set the system up using the automatic calibration on Pioneer Elite 45tx. The bass always sounds boomy and sort of unatural. I have had the sub for 4months. My dealer is willing to allow my to upgrade to the seismic 10 or12 with full credit for my original purchase. Has does anyone have any of these sub in their system? What type of luck have you had? Are the seismic 10 or 12 anymore "muscial?" I am currently using as my paradigm focus v.3 fronts, center, and rears(loan from dealer). Previously, I was using Sony 615 as my fronts.