I got a kicker kx750.1 amp for sale here's the specs:
# ZX Series Class D Monoblock Car Amplifier
# RMS Power Rating:
* 4 ohms: 375 watts x 1 chan.
* 2 ohms: 750 watts x 1 chan.
# Max power output: 750 watts x 1 chan.
# MOSFET power supply
# Wired remote bass level control included
# LED power and protection indicators
# Tuned Bass EQ (0-18 dB bass boost at 40 Hz)
# Balanced differential inputs make KICKER ZX Amplifiers compatible with any factory radio
# Eliminates unwanted noise in a system
# Boost, gain, and crossover frequencies are top-mounted for easy access, and a handy protection indicator featuring a new flashing yellow low-voltage light enhances the end panel
# Bridgeable operation
# Speaker-level inputs compatible (switch-able) through RCA connection
# Preamp RCA outputs
# Automatic turn on modes: remote, DC offset, or signal sense
# Thermal, voltage, and short circuit protection circuitry
# Variable low-pass filter (50-200 Hz, 24 dB/octave)
# Subsonic Filter (24 dB at 25 Hz)
# CEA-2006 compliant amplifier
# Frequency response: 50-200 Hz
# Dimensions: 14-11/16"L x 9-5/8"W x 2-1/8"H
# ZX Series Class D Monoblock Car Amplifier
# RMS Power Rating:
* 4 ohms: 375 watts x 1 chan.
* 2 ohms: 750 watts x 1 chan.
# Max power output: 750 watts x 1 chan.
# MOSFET power supply
# Wired remote bass level control included
# LED power and protection indicators
# Tuned Bass EQ (0-18 dB bass boost at 40 Hz)
# Balanced differential inputs make KICKER ZX Amplifiers compatible with any factory radio
# Eliminates unwanted noise in a system
# Boost, gain, and crossover frequencies are top-mounted for easy access, and a handy protection indicator featuring a new flashing yellow low-voltage light enhances the end panel
# Bridgeable operation
# Speaker-level inputs compatible (switch-able) through RCA connection
# Preamp RCA outputs
# Automatic turn on modes: remote, DC offset, or signal sense
# Thermal, voltage, and short circuit protection circuitry
# Variable low-pass filter (50-200 Hz, 24 dB/octave)
# Subsonic Filter (24 dB at 25 Hz)
# CEA-2006 compliant amplifier
# Frequency response: 50-200 Hz
# Dimensions: 14-11/16"L x 9-5/8"W x 2-1/8"H
