Summary: We have been using product for 4 weeks. I believe that since we have a very large open floor plan (24 x 40), the subwoofer does not give the "punch" I was hoping for. However it does sound good, and is an improvement over what we had. The main speakers are Polk RTA 8TL, center Polk CS 1 , Polk RT 15 rears. My decision to purchase this subwoofer were price,and size. It looks good, and was easy to hook up, and can hide it alongside a cabinet.