Description Specifications POWER Total Watts (Peak) 4000W RMS Power @ 4 ohms 4 x 275W RMS Power @ 2 ohms 4 x 430W RMS Power @ 1 ohm / RMS Power @ 4 ohms Bridge 2 x 750W AUDIO Frequency Response 10Hz-20KHz Signal to Noise Ratio 90dB Efficiency @ 4 ohms 86% Damping Factor 140 Input Impedance 20kΩ Channel Separation 45dB Total Harmonic Distortion (THD) 0.05% Low Level Input Range 200mV-5V High Level Input / Selectable X-Over HPF/FULL/LPF X-Over Filter Range 40Hz-2KHz Bass Boost Range / Bass Boost Frequency / Infrasonic Filter / Phase Selector / FEATURES Amplifier Class Digital (D) Amplifier Type Stereo Full Range Number of Channels 4 Minimum Impedance 2 Ohms Stereo / 4 Ohms Bridge Led Indicator Power/Protect/Clip Power Input Terminal Size 4 Ga Fuse Size External fuse Remote Level Control / Cooling Fan / Voltmeter / Thermal Protection Yes (80℃) Over-Load Protection Yes DC Output Protection Yes Short Circuit Output Protection Yes Voltage Input Protection Yes (16.5v) Clipping Protection Yes Body Color / Finish Red / Black Brushed Aluminum MEASUREMENT Overall Length 10.6" / 269mm Overall Wide 5.5" / 140mm Overall Height 1.8" / 48mm Heatsink Length 9.1" / 232mm Gross Single Unit Weight 2.05Kg