Class AB amp technology; 600 watts max, 300 watts RMS; 12 in. subwoofer; Delivers deep power; Low Turbulent venting system minimizes port noise ; Directional aluminum heat sink improves heat dissipation; High-temperature 1.5 in. copper voice coil is wound precisely to help keep subwoofer cool while creating a strong magnetic field; Vented aluminum voice coil former dissipates heat quickly in high SPL situations and extends the life of the subwoofer; Low-pass filter: 30 Hz to 150 Hz; Variable crossover: 30 Hz to 150 Hz; Variable 0 to 12 dB bass boost ; High and low input options for integration with stock (OEM) stereo system ; Enclosure made from strong, high-density MDF with internal bracing for long life; Includes bass remote, window sticker, high-level input adapter, and manual;