1. mono subwoofer amplifier 2. 1,200 watts RMS x 1 at 1.5 to 4 ohms 3. Regulated, Intelligent Power Supply system 4. differential-balanced inputs 5. variable low-pass filter (40-200 Hz, 12 or 24 dB/octave) 6. parametric EQ bass boost (0-15 dB at 20-80 Hz) 7. variable infrasonic filter (15-60 Hz, 24 dB/octave) 8. optional wired remote bass boost 9. Class-D amplifier design 10. MOSFET power and output stages 11. preamp and speaker-level inputs (speaker-level input requires an optional adapter) 12. preamp outputs 13. 4-gauge power and ground leads and a 100-amp fuse recommended - wiring and hardware not included with amplifier 14. no onboard fuses - when installing multiple amps in a system, an additional 100-amp in-line fuse between the distribution block and the amplifier is recommended 15. 19-3/4"W x 2-7/16"H x 9-5/16"D