Lanzar HTG137 Heritage Series 2,000-Watt-Max Monoblock Class AB Amplifier • 2,000 watts max x 1 channel at 2 ohms; 1,250 watt peak x 1 channel at 4 ohms; 350 watts RMS x 1 channel at 4 ohms; 900 watts x 1 channel at 2 ohms; 2 ohm stable;• Designed to supply power to a separate subwoofer;• Frequency response: 10 Hz to 45 kHz;• HPF frequency response: 80 Hz;• LPF frequency response: 50 Hz to 250 Hz;• Electronic crossover network;• Bass boost circuitry;• RCA inputs; L/R line outputs;• Power and protection LED indicators;• Soft-turn on/off;• 30 amp fuse;• Dimensions: 9.84 in. D x 8.81 in. W x 2.4 in. H;