Two subwoofers boom some bass - and both are hidden. A Velodyne DD-15 fires from the front cabinets, while an in-wall Triad sub rocks ‘em from the back side wall. The equipment rack is in a nearby closet, home to a Lexicon processor and amplifier, Sony Blu-ray player, DirecTV HD receiver, Furman power conditioner, RTI control processor. And Triad subwoofer amp.