Quick Overview The TS-WX1210A is a powerful, sealed, pre-loaded subwoofer enclosure. It features a built-in, high-output, low-distortion, 1300 W Max Class D amplifier paired with a 12" subwoofer that has a urethane surround and an oversized magnet structure, specifically optimized for use in sealed enclosures. User-adjustable controls include an LPF, phase control, variable bass boost level, and bass boost to provide enhanced subwoofer control. To expand system flexibility, users can control the output volume using the included wired remote bass control knob.