You might want to take a trip down to your local future shop and audition the Velodyne DPS-12. I picked one up for $499 on sale (reg 699) and no shipping required. I am going to pick up another one this week for a dual setup. It's not on sale right now but the salesman is going to sell it to me for 549. I am very happy with the sub for my 85% movie watching. Hard hitting bass that is very clean and can also easily shake all of the walls in my three storey house from the basement. IMO, it is the best sub that I could find locally in that price range after testing them all (Klipsch, energy, polk etc.)