A force to be reckoned with, the Reference Series RT-12d Digitally Controlled Subwoofer (DCS™) sets a new standard for hard-hitting bass performance. With its high-end materials and rock-solid construction, this flagship powerhouse delivers low-frequency effects with commanding authority.Featuring a triangular-shaped, small footprint design, the RT-12d employs three ultra high-output 12-inch Cerametallic™ drivers (one front-firing woofer, two rear-firing passive radiators) and a potent 800-watt RMS amplifier. Fitting nicely into a corner, the RT-12d's unique enclosure style allows the passive radiators to face both walls of the corner for maximum output. Through proprietary DCS technology, this subwoofer gives you more control and flexibility with different source material. The DCS digital user-interface offers quick and easy adjustment of all functions, including three equalization modes (flat, depth and punch) and five user-adjustable presets (music, movie, night and two name-your-own settings) to create specific listening preferences. By utilizing a patent-pending auto room correction process, formally known as Adaptive Room Correction™ or ARC, and the included calibration microphone, the RT-12d ensures ideal performance in every listening area at the touch of a button. It also comes with an IR sensor for operation from any learning remote or control system. Meticulously crafted in a cherry or black ash wood veneer finish, the RT-12d has an elegance and style that perfectly anchors your home theater or two-channel stereo music system.