POWER SUPPLY: Class D vehicle audio amp, Total PWR 14.4 @ 1 Ohms: 4x400 WRMS Total PWR 14.4 @ 2 Ohms: 4x260 WRMS, Total PWR 14.4 Bridged @ 2-4 Ohms: 2x800 WRMS; Total Power 12.6 @ 1 Ohm: 4x300 WRMS; Efficiency @ 2 Ohms: 85% Efficiency @ 1 Ohm: 75% | CAR AUDIO AMPLIFIER INDICATORS: Blue LED: source and powered amplifier indicator, Red LED: output distortion (clipping), Constant - shorting and thermal protection indicator, Yellow LED: below specified voltage indicator (flashing) | POWER OUTPUT AND IMPEDANCE: Input Voltage: 9 to 15V, Input Impedance: 100K Ohms, THD + Noise: less than <1%, Input Sensitivity: 120mV to 4V, Signal to Noise Ratio: 85dB | SOUND SPECIALIZATION: This high-powered car audio amplifier is cutting edge technology at its finest. RCA connectors ensure a secure connection between amplifier and speakers that allow distortion-free sound | OTHER TECHNICAL SPECS: Recommended Fuse: 80A, Current at Rest: 1.5A, Ave. Current Draw (Sinusoidal): 150A, Ave. Current Draw (Music): 75A, Power Wire Gauge: 16mm/5 AWG, Speaker Wire Gauge: 2x2,5mm/2x14 AWG, Size: 2.2” x 8.4” x 9.7” -inches