50W x4 +320 x1@4Ω, 75W x4 +500 Wx1@2Ω, 150W x2 @4Ω Bridged + 500W x1@2Ω,Class AB+D, Variable HP/LP 32-320Hz/12dB/oct,LP subwoofer ch (32-320Hz), Phase Sw 0,180 degrees hi-low level balanced diff inputs 200mV-20V, Switchable turn on mode, Onboard protection for shorts, high temp,over voltage/under voltage w/LED status, RBC wired remote, Phase SW Product info: 5-channel car amplifier 50 watts RMS x 4 + 320 watts RMS x 1 at 4 ohms 75 watts RMS x 4 + 500 watts RMS x 1 at 2 ohms 150 watts RMS x 2 bridged at 4 ohms + 500 watts RMS x 1 at 2 ohms front and rear channels: Class AB amp technology variable high- and low-pass filters (32-320 Hz, 12 dB/octave) subwoofer channel: Class D amp technology low-pass filter (32-320 Hz, 12 dB/octave) bass boost (0-12 dB at 45 Hz) phase switch (0, 180 degrees) wired remote bass control module included More Info: preamp and speaker-level inputs bare wire to RCA adapters included for high-level input wiring and hardware not included with amplifier 4-gauge power and ground leads recommended fuse rating: 30A x 3 dimensions: 14-3/16"W x 2-3/16"H x 7-1/8"D warranty: 1 year MFR # AMPRF7005AAM Item # 108R7005A