General Features: Belva BB Series Class-D 1-Ohm Stable Monoblock Amplifier RMS Power Rating: 4 ohms: 1200 watts x 1 chan. 2 ohms: 1800 watts x 1 chan. 1 ohm: 3000 watts x 1 chan. Max power output: 5000 watts Pulse Width Modulated MOSFET power supply Wired remote bass level control included LED power (green) and protect (red) indicators Variable Bass Boost (0 to +12 dB bass boost adjustable between 30-80 Hz) Preamp RCA outputs to daisy chain multiple amps 3-way protection circuitry (thermal, overload, and speaker short protection) Heavy duty aluminum alloy heat-sink Input sensitivity: Low level: 100mV-6V Variable low-pass filter (40-180 Hz, 12 dB/octave) Subsonic filter (12 dB variable from 20Hz - 50 Hz) Frequency response: 20-30,000 Hz 300 Amp ANL Fuse and Holder included 1/0 gauge power and ground wiring is required for installation Dimensions: 20-3/8"W x 8-1/4"D x 2-1/4"H