The GM-D8701 1 channel automotive amplifier is rated at 1,600 watts max with a subwoofer output rated at 500 watts at 2 ohms (RMS) and 800 watts at 1 ohm (RMS). Use the wired bass boost knob to add 0 to 18 more dBs. This car amp has block terminals for a cleaner installation and direct wire contact to minimize resistance. 300W RMS x 1 @ 4ohm ; 500W RMS x 1 @ 2ohm ; 800W RMS x 1 @ 1ohm ; Freq resp: 10Hz-240kHz ; Signal-to-noise ratio: 100dB; Load imp: 1ohm -8ohm ; Crossover freq: LPF 40Hz-240HZ; Slope: -12dB/octave; Bass boost remote @ 50Hz (0db-18dB); High-level input with turn-on sensor ; 2-channel low-level RCA input; Pass-through 2-channel low-level RCA output; Includes wired bass boost remote Warranty: One Y