DESC: 1x800W RMS at 4 OHMS. 1x1400W Max at 2 OHMS 1x2000W at 1.3 OHMS Mono Block Subwoofer Amplifier 1 Ohm Stable MOSFET Power Supply PWM(Pulse-Width-Modulated) System Glass Epoxy PCB With SMD Technology Gold plated RCA Inputs Custom Terminal Block for Speaker Connections Thermal, Overload & Short Protection Variable Subsonic Filter(15Hz~40Hz,24dB/Octave) Phase Control 0-180 degree Input Impedance:10K Ohms Soft Turn On/Off Heavy Duty Power Coated Heatsink THD: 0.1%. S/N RATIO: 90dB Input Sensitivity: 200mv~4V Freq. Response: 20Hz~250KHz Remote Bass Control