Rockford Fosgate Power T400-2 400 watt stereo amplifier 24dB/octave crossover|MOSFET power supply|MOSFET output stage|4 Gauge power/ground connectors|Audiophile grade speaker connections|RCA pass-thru outputs|2 Years|Standard Warranty Two-channel amplifier delivers 200 watts at 2 ohms, 120 watts at 4 ohms, and 400 watts at 4 ohms bridged mono Class A/B amplifier with MOSFET output stage and power supply Variable high-pass/low-pass filters with range of 50-500 Hz (24 dB/octave slope) Variable bass (0dB to +18dB @ 45Hz) and treble (0dB to +12dB @ 12kHz) controls Low-level RCA input and pass-thru output