Features ATC - Audiophile RCA Connectors ACT - Adaptive Crossover Technology High efficiency Class Full Range Class D Technology 0 Gauge Direct Connect Speaker Terminals 0 ga. Gauge Power Wire Inputs APC - Audio Protection Circuit SESI - Signal Evaluation Status Indicator Bass Remote with voltage , temperature and signal status indicator CHM - Collective Heat Management Specifications 1 x 3000 Watts @ 1 ohm 1 x 1500 Watts @ 2 ohms 1 x 750 Watts @ 4 ohms Working Voltage: 12-15 Volts Frequency Res