The QS2000 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. 2000 watts TRUE RMS certified at full range output Digital Class D Brazilian Technology 1 Channel car audio amplifier stable at 1 Ohm gives you the benefit of wiring multiple speakers and dividing the power. 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: 7.40″ Wide x 8.66″ Length x 3.00″ Height 4-way protection circuitry features high voltage, low voltage, shortage, and current protection. Built-in Power/Protection/Clip LED indicators on the top panel. Channels 1 Channel Rated RMS Power at 14.0 V at 1 Ohm 2000 Watts Rated RMS Power at 14.0 V at 2 Ohm 1600 Watts Part Number: QS2000.1