Check out my website also {url removed} 4-channel car amplifier 50 watts RMS x 4 at 4 ohms (100 watts RMS x 4 at 2 ohms) 200 watts RMS x 2 bridged at 4 ohms (4-ohm stable in bridged mode) CTA-2006 compliant Boosted Rail amp technology C.L.E.A.N. gain setup system includes test tone CD test tones also available as MP3 download (labeled "3sixty.3 setup disc") from Amazon On Demand, Rhapsody, Google Play, and Spotify More Features: switchable high-pass filters (off/60/80 Hz at 12 dB/octave) on front and rear channels switchable low-pass filters (off/80 Hz at 12 dB/octave) on front and rear channels preamp and speaker-level inputs signal-sensing turn-on with speaker-level inputs eliminate need for remote turn-on lead wiring, fuse, and hardware not included with amplifier 8-gauge power and ground wires and a 60-amp fuse recommended dimensions: 6-3/4"W x 1-9/16"H x 4-1/4"D