Soundstream REF4.400 4-Channel Amplifier 400 Watt

Soundstream Reference Series 4-Channel Class A/B Car Amplifier RMS Power Rating:4 ohms: 70 watts x 4 chan.2 ohms: 100 watts x 4 chan.Bridged, 4 ohms: 200 watts x 2 chan. MOSFET power supply RUBI (Rapid-Use Branched Impulse) proprietary power supply technology STACT (Stabilized Apex Current Technology) reduces power supply stress by 50% Hawkins Bass Control (0-10 dB bass boost at 15-4000 Hz) Trident amplifier power topology 4 channel operation Vortex induction fan thermor management Ultra-low ESR capacitors ensure rapid power delivery for dynamic peaks Harmonic Bass Alignment produces tighter, clean bass Rail stabilization protection circuitry Balanced line inputs for highest noise rejection Triple Darlington output circuitry BIP (Bias Input Protection) Heavy duty aluminum alloy heatsink for extreme heat dissipation Gold-plated RCA level inputs Gold-plated screw terminals Tri-mode operation Variable high-pass filter (15-4000 Hz, 12 dB/octave) Variable low-pass filter (50-4000 Hz, 12 dB/octave) Bass Boost (30-80 Hz, 12 dB/octave) Frequency response: 10-50,000 Hz THD (Total Harmonic Distortion): 0.02% Signal-to-noise ratio: 115dB Input Sensitivity: 0.2-9 volts Damping factor: >200 Dimensions: 15-15/16″L x 9-7/8″W x 2-1/8″H 4-gauge power and ground wiring is required for installation. 1-year Manufacturer’s warranty