I finally had time to set the Polk up, used the room EQ feature, adjusted the crossovers on my reciever, sounds much better. Still thinking about replacing it though. Theres an SVS tube sub for sale locally, would it be comparable or better than my Polk? I could easily get my money back out of it, I bought it not working, and had to replace the driver. Can't see how that could blow, as beefy as it is, but it did. Maybe I,m expecting too much out of a small box.