The TS-WX1210A is a powerful sealed pre-loaded subwoofer enclosure. Featuring a built-in high bandwidth, high output and low distortion 1300 W Max Class D amplifier mated to a 12" subwoofer with a urethane surround and oversized magnet structure specifically optimized for use sealed enclosures. User adjustable controls include an LPF, phase control, variable bass boost level (0 to +12 dB), and bass boost frequency adjuster (40Hz to 100Hz) to provide enhanced subwoofer control. To expand system flexibility and user control, input gain can be adjusted using the included wired remote bass control knob or via the input gain control mounted on the enclosure side panel. The TS-WX1210A can be installed with the subwoofer firing rear or front for optimal bass tuning.