Class D monoblock; 1ohm stable monoblock operation for max power; 2 amps bridgeable for double power; Military-grade PCB with PWM MOSFET power supply; Direct short, thermal & overload circuit protection; High/speaker-level & low-level/RCA inputs; 200mV-6V low-level RCA input; 4-gauge power wire & 8-gauge speaker wire outputs; Variable 12dB high- & low-pass crossovers; 12dB bass boost & 180deg phase shift increase & improve low-octave harmonics; Includes dash-mount gain control; 4,500W max; 750W RMS x 1 @ 4ohm ; 1,500W RMS x 1 @ 2ohm ; 2,250W RMS x 1 @ 1ohm bridged; Dim: 2.25″H x 13″W x 9″D;