HFi100.4 - Hifonics 4 Channel 800 Watt HFi Series Amplifier

This amplifier supported the stereo system in my part out vehicle. Everything sounded great!!   HFi Series 4-Channel Class A/B Car Amplifier RMS Power Rating: 4 ohms: 100 watts x 4 chan. 2 ohms: 200 watts x 4 chan. Bridged, 4 ohms: 400 watts x 2 chan. Max power output: 800 watts Pulse Width Modulated (PWM) MOSFET power supply LED power (blue) and protect (red) indicators Variable Bass Boost (0 to +12 dB bass boost at 45 Hz) Blue illuminated Hifonics badge Soft start sound function 4/3/2 channel operation Preamp RCA outputs to daisy chain multiple amps 4-Way System Protection circuitry (thermal, overload, DC, and speaker short protection) Tri-mode speaker operation Heavy duty aluminum alloy vented heatsink for maximum heat dissipation Silver nickle-plated RCA level inputs Silver nickle-plated screw terminals Input sensitivity: Variable level: 200mV-6V Variable high-pass filter (60-12,000 Hz, 12 dB/octave) Variable low-pass filter (30-250 Hz, 12 dB/octave) Damping factor: >180 Frequen