DS18 EXL-P800X4 Car Audio Amplifier SPECIFICATIONS RMS Power @ 4 Ohm 150W x 4CH RMS Power @ 2 Ohm 200W x 4CH RMS Power @ 4 Ohm Bridge 400W x 2CH Frequency Response 20Hz-20KHz Signal/Noise Ratio 98dB Efficiency @4 Ohm63% Damping Factor 140 THD % 0.10 % Low Level Input Range 200MV-6V Selectable X-Over Yes, HPF/FULL/LPF X-Over Filter Range50Hz-2KHz Bass Boost Range 0-+9dB Bass Boost Frequency30Hz-60Hz Infrasonic Filter No Phase Selector 0-180 Class AB (Analog) Amplifier Type Stereo Full - Range Channels 4 CH Minimum Impedance2 Ohm/CH (4 Ohm Bridge) Led Indicator PWR / CLIP / PROTECT Power Input Size4 AWG Fuse Rating 120A Remote Level Control Yes - Dash Mount Cooling Fan Yes Thermal Protection Yes 97degC / 206degF Over-Load Protection Yes Dc Output Protection Yes Short Circuit Output Protection Yes Voltage Input Protection Yes 15.5V Clipping Protection Yes Body Color / Finish Black Aluminum Dimensions LxWxH (Inches) (mm) 11.5 x 8.77 x 2.67" / 292 x 223 x 68 mm Heatsink Length 9.84" / 250mm