Just got my psw505 subwoofer and hooked it up to my pioneer vsk-521 receiver, the bass is very quiet and sounds far away. Even at max volume I can barely feel it, from reviews it should be shaking walls and shattering windows at only 30%, anyone have any ideas why it is so quiet? I even boosted the sw +12 db on the receiver, could it be the cable? I am using a LFE rocket fish subwoofer cable, please help!