DS18 HYDRO NXL-X1000.1D 1-Channel Marine Waterproof Amplifier - Class D 1000 Watts @1 Ohm RMS 2000 Watts Peak
JL Audio RD1000/1 Mono subwoofer amplifier — 1,000 watts RMS x 1 at 2 ohms at Crutchfield
Amazon.com: AudioPipe APCLE-2002 Class AB 2 Channel 1000 Watt MAX Car Audio Sound System Power Amplifier Kit with Bass Knob, RCA Input/Output, and Overload Protection : Electronics