Velodyne DEQ-12R 12-Inch Powered Subwoofer (Black) (Discontinued by Manufacturer) 1-touch auto-EQ room bass correction with microphone automatically adjusts your sub for great sounding bass 12-inch forward firing long-throw woofer with 2-layer copper voice coil for low distortion Remote control and front panel display keep you informed of any change you make to the bass 4 1-touch listening presets customize the bass sound for best performance with music or movies Efficient front-firing slotted bass reflex cabinets for high output with low distortion