I've actually misplaced the bass knob as I never used it ,but I will look tonight when I get home. Hopefully I didn't leave it in the box. Specs are:
ZX Series Class D Monoblock Car Amplifier
RMS Power Rating:
4 ohms: 500 watts x 1 chan.
2 ohms: 1000 watts x 1 chan.
Max power output: 1000 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 radios
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 (switchable) 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: 25-200 Hz
Dimensions: 16-3/4"L x 9-5/8"W x 2-1/8"H
Its a tad bit under rated, The birth sheet had 1082watts at 2ohms, not much but still more than advertised