The sub15 passive in-room subwoofer employs a high-power, 1000W, 3” voice-coil, long-throw 15” driver. With a maximum output of 124dB the bass the sub15 provides belies intuition, extending deeper than seems possible, with tight, tuneful expression. It’s the perfect in-room subwoofer complement to Theory Professional full range speakers to create a truly astonishing high-energy environment.