Model AD 1.400Channels quantity 1Amplifiers class DRated power at 4 Ohm 400W x 1Rated power at 2 Ohm 650W x 1Rated power at 1 Ohm 1000W x 1Stable operation of the load 1 OhmFrequency response 15Hz -130HzTotal harmonic distortion (THD) @ 1kHz (4 Ohm) < 0,1%Input sensitivity 0,2V-5,6VS/N ratio > 100 dBFrequency and steepness of the crossover: LPF 50-130Hz /12dBCabsonik 10-50Hz /12dBPhase corrector 0-180Damping factor > 160Remote control the volume and quality of the bass yes (0-18dB /60Hz)Fuse 35Ax3Efficiency (4Ohm /100Hz) 87%Soft start yes, delay 3-5sRecommended diameter power cables > 4AWG (21,04 square millimeters)Dimensions in mm (WxHxL) 170x46x323General Epoxy center plate with through mounting holesHigh-FETsSecurity overheating (80 + -5)overload (0.8 Ohm)from electrical surges (10-15V)Short circuitfrom wrong connectionLEDs Power LED (green)Fault indicator (red)