TMA Monoblock Class D Car Amplifier RMS Power Rating (14.5V): 4 ohms: 400 watts x 1 chan. 3 ohms: 500 watts x 1 chan. 2 ohms: 750 watts x 1 chan. 1.5 ohms: 900 watts x 1 chan. 1 ohm: 1000 watts x 1 chan. Max power output: 1000 watts Switching MOSFET power supply Wired remote bass level control included LED power and protect indicators Bass Boost/EQ details (0-12 dB bass boost at 45 Hz) Phase switch (0 or 180 degrees) Mono channel operation Preamp pass through RCA output with unity gain 2-Way System Protection circuitry (thermal and speaker short protection) Heavy duty aluminum alloy heatsink for extreme heat dissipation Silver-plated RCA level inputs Silver-plated screw terminals Variable low-pass filter (45-240 Hz, 12 dB/octave) Subsonic Filter (24 dB at 15-50 Hz) Frequency response: 10-160 Hz Dimensions: 14-9/16?L x 9-11/16?W x 1-15/16?H