5-Channel Class D Marine System Amplifier, 100 W x 4 @ 2 Ω + 600 W x 1 @ 2 Ω - 14.4V. The M1000/5v2 includes a 12 dB / octave high-pass filter for one main channel pair, a 12 dB octave high-pass or bandpass filter for the other main channel pair, plus a variable slope low-pass filter for its subwoofer channel.
eBay