I was never that impressed with this sub until I bought the Pioneer Elite VSX-74TXVi receiver. This receiver has MCACC, an automatic surround sound setup that uses a microphone and test tones to quickly customize settings for your room. The first DVD I put on was War of the Worlds. The bass is so perfect and powerful, I never thought this sub could sound so great. Before, I could kind of localize the bass at the sub, but now it seems to be ALL round me. Sitting about 11' from the sub, I can sometimes feel the hair on my head and pant legs vibrate. Thanks again SVS! By far the best bang for the buck!