Rockville RXA-F2 2400 Watt Peak / 1200w RMS 4 Channel Amplifier Car Stereo Amp Rockville RXA-F2 2400 Watt Peak / 1200w RMS 4 Channel Car Stereo Amplifier CEA Compliant Power Ratings: 400 Watts (4 x 100 Watts) at 4 ohms and 1% THD+N 600 Watts (4 x 150 Watts) at 2 ohms &lt; 1% THD 600 Watts (2 x 300 Watts) bridged @ 4 Ohms &lt; 1% THD. RMS Power Ratings 1200 Watts (4 x 300 Watts RMS) @ 2 ohms 1200 Watts (2 x 600 Watts RMS) @ 4 ohm Bridged 800 Watts (4 x 200 Watts RMS) @ 4 ohms Peak Power: 2400 Watts (2 x 1200 @ 2 ohms or 1 x 2400 @ 4 Ohms) High-Speed MOSFET Power Supply