Pioneer GM-DX871

Mono subwoofer amplifier — 800 watts RMS x 1 at 1 ohm
 
mono subwoofer amplifier
300 watts RMS x 1 at 4 ohms (500 watts RMS x 1 at 2 ohms)
800 watts RMS x 1 at 1 ohm
CTA-2006 compliant
Class D amp technology
frequency response: 10-240 Hz
variable low-pass filter (40-240 Hz, 12 dB per octave)
wired remote variable bass boost (0-18 dB at 50 Hz)