The main Scope for subwoofer - Yes Class - D Number of channels - 1 Rated power - 4 Ohm W 800 x 1 Rated power - 2 Ohm W 1400 x 1 Rated power - 1 Ohm W 2000 x 1 Frequency range Hz 10-300 Harmonic coefficient % <0.1 Signal to noise ratio Db > 90 Remote control remote control - There is Filters / DSP Infra Low Pass Filter / Slope Hz / dB / oct 10 - 55 Phase rotator - 0-180 Commutation Inputs (RCA) - 2 Input sensitivity V 0.2-6 Output (RCA) - 2 Nutrition Operating supply voltage V 9-14 Fuse A 2x100 Power terminals Ga / mm 0 / 53.5 Acoustic terminals Ga / mm2 8 / 8.35 Overload protection - There is Protection indicator Not really There is Dimensions (edit) Height size mm 55 Width Size mm 221 Size by length mm 468 Net weight G. 6470 Total weight G. 6700