The SVS PB-4000 is the latest evolution of a powerful subwoofer design that has stood the test of time. This design started out as the PB13-Ultra which was launched in 2007 and has gone through a number of changes since its introduction.
Extremely linear response all the way down to 16 Hz; Very good distortion behavior; Nice looking for a large subwoofer; Excellent build quality; Great customer service and warranty; Innovative controls carried down from the 16 Ultra Subwoofers
Heavy- 153 lbs; Cabinet feet don't give fingers much clearance