QS Series amplifiers are all about efficient design capable of full-range frequency response at a great price! The QS800.4 features a regulated power supply that is able to constantly deliver power and provides an unsurpassed efficiency rate of 80–90% in a small aluminum heatsink. 4 x 220 watts TRUE RMS certified at full range output Digital Class D Brazilian Technology 4 Channel car audio amplifier stable at 2 Ohm gives you the benefit of wiring multiple speakers and dividing the power per channel. Engineered to be the most efficient full range amplifier so that you can get the most out of your vehicle’s electrical system! A small footprint and compact chassis make this amplifier easy to install anywhere in the vehicle: 8″ Wide x 7.90″ Length x 2.65″ Height 2 Channel Bridged – double the power output to your speakers by bridging two channels. Minimum impedance of 4 Ohms per bridged channel at output power of 2 x 450 Watts RMS. Channels 4 Channel Rated RMS Power at 14.0 V at 2 Ohm 4x 220 Watts Rated RMS Power at 14.0 V at 4 Ohm 4x 140 Watts Bridged Rated RMS Power at 14.0 V at 4 Ohm 2x 450 Watts GENERAL SPECIFICATIONS Impedance 2 Ohm Channels 4 Channel Rated RMS Power at 14.0 V at 2 Ohm 4x 220 Watts RMS Rated RMS Power at 14.0 V at 4 Ohm 4x 140 Watts RMS Bridged Rated RMS Power at 14.0 V at 4 Ohm 2x 450 Watts RMS Average Efficiency 82% Operating Voltage 9 to 15 Volts Musical Current Draw 45 A Minimal Power Wire Input (OFC) 4 Gauge wires Built-in Crossover Fixed HPF & LPF at 90 Hz Minimal Speaker Wire Output 14 Gauge Frequency Response(-3dB) 20 – 25,000 Hz Min. Input Sensitivity for Max. Output 200 mV Signal Input 2 Pair RCA Signal to Noise >90 dB Protection System High Temperature / Short circuit on Output Heat Sink Type Heavy Duty Cast Aluminum Dimensions ( Width x Depth x Height ) 7.90″ x 8.00″ x 2.65″ Weight 3.80 Lbs
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