I went to Circuit City today to look at some video games and there it was the new psw550.Its small,it's power ported on the bottom,it has te new Polk look,and sound.I personall think this sub sounds ok but it has no power at all,I ran it up against the psw450 and the 450 kicked it's face in.I really wan't impressed with this new little sub,the Bob Carver rip off wasn't nice at ll.I know the demand's of a good preforming sub in a little box is what everybody(except me)wants but come on, this sub........just sucks.I personally don't have any use fo it at aLL.