Features:, Class D Vehicle Audio Amplifier, Clip indicator, Amplifier Indicators: Power On (Green), Low Battery (Red), Clip Short (Blue), Cooling Fans, Pursue Excellence with Crispy and Loud Sound, Slim Size Amplifier Design, 1 Ohm Car Audio Mono Amp, Perfect for Car Stereo Entertainment System, With Bass Boost High Pass Filter and Low Pass Filter, Comes with Required Mounting Hardware for Easy Installation, Whats in the Box:, 3900W Car Audio Mono Amplifier, Mounting Screws, Technical Specs:, Construction Materials: Aluminum and Some Steel, Total Audio Power Output: 14.4 @ 1 Ohm: 3900 Watts RMS, Total Audio Power Output: 14.4 @ 2 Ohms: 2900 Watts RMS, Total Audio Power Output: 12.6 @ 1 Ohm: 3000 Watts RMS, Total Audio Power Output: 12.6 @ 2 Ohms: 2300 Watts RMS, Efficiency @ 2 Ohms: 78%, Efficiency @ 1 Ohm: 71%, Input Voltage: 9 to 15 Volts, Input Impedance: 100K Ohms, THD+Noise: less than 1%, Input Sensitivity: 110mV to 4 Volts, SNR: 80dB, Frequency Response: 20 to 20KHz (-3dBs), HPF (Subsonic): 20 to 80Hz @ 12dB/octave Linkwitz-Riley, LPF (Crossover): 80 to 20kHz @ 12dB/octave Linkwitz-Riley, Recommended Fuse: 150 Amps, Current at Rest: 1.5 Amps, Average Current Draw (Sinusoidal): 360 Amps, Average Current Draw (Music): 180 Amps, Power Wire Gauge (Minimum Recommended): 21mm / 4 AWG, Speaker Wire Gauge (Minimum Recommended): 2 x 4mm / 2 x 11 AWG, Weight (Lb): 7.6, Product Dimensions (L x W x H): 9.77 x 8.4 x 2.2 -inches, Sold as:, Weight: 8.17 lbs.