1-Channel Class-D Mono Block Amplifier + Subwoofer Remote 1x 400 Watts RMS @ 4 Ohm Mono 1x 750 Watts RMS @ 2 Ohm Mono 1x 1250 Watts RMS @ 1 Ohm Mono Frequency response: 20Hz - 250Hz S/N Ratio: 100dB Var. 24dB Lowpass 50Hz - 150Hz Subsonic 15Hz - 40Hz Phase 0 - 180° Input sensivity: 0,1V - 5V Line Output Dimensions (LxWxH): 413 x 270 x 57mm