Rockford Fosgate amplifier P500.2. Great amplifier, had it in my weekend car which I recently sold, it was used to power a RF P3 and it really bumped hard. This can be used either for high powered speakers or for a subwoofer. Come get a great amplifier at a great price. 2-channel car amplifier 125 watts RMS x 2 at 4 ohms (250 watts RMS x 2 at 2 ohms) 500 watts RMS x 1 bridged output at 4 ohms (4-ohm stable in bridged mode) CEA-2006 compliant Dynamic Thermal Management cooling system variable high- and low-pass filters (50-500 Hz, 12 dB/octave) variable bass/treble boost (0-18 dB at 45 Hz, 0-12 dB at 12,000 Hz) optional wired remote bass/treble boost Class-AB amplifier design MOSFET power and output stages preamp inputs and outputs 4-gauge power and ground leads and a 100-amp fuse recommended — wiring and hardware not included with amplifier no on-board fuses — when installing multiple amps in a system, an additional 100-amp in-line fuse between the distribution block and the amplifier is recommended 13"W x 2-1/4"H x 8-1/2"D JL RE Fosgate Polk audio MTX Sundown Alpine Hertz Infinity Pioneer