Class D; Monoblock amp; Small, compact chassis; MOSFET PWM power supply with Audiophile ; Military-grade SMT PCB maintains dynamic performance; 2ohm minimum impedance stability; Direct short, thermal & overload circuits; 200mV-6V low-level RCA inputs; High-level input with signal-sense auto turn on; 10Hz-50Hz variable subsonic crossover protects subwoofer; Variable 12dB high-pass & low-pass crossovers; 10Hz-50Hz variable subsonic crossover protects subwoofer; 12dB bass boost increases low-octave harmonics; 2,300W max; 900W RMS x 1 @ 4ohm ; 1,400W RMS x 1 @ 2ohm ; Includes dash-mount remote gain control; Dim: 1.63″H x 11″W x 4.75″D;