Triad’s InRoom Gold Sub features a 15 inch long-throw driver and 700 watts of power for prodigious output and impact. Triad’s subwoofers offer the best in performance, value, and versatility, in a stunning new industrial design. With all new drivers, enclosures, and amplifiers, there is a Triad subwoofer for any application. Powerful SubAmp technology combines Class AB performance and near Class D efficiency with set-up and calibration.