4 Channel Amplifier Class AB 4 x 130 Watts @ 2 Ohm 4 x 65 Watts @ 4 Ohm 2 x 250 Watts @ 4 Ohm bridged 12 dB High Pass: 40 Hz – 300 Hz 12 dB Low Pass: 40 Hz – 300 Hz damping factor: over 200 THD: 0.03% frequency response: 10 – 40 000 Hz ( +-0.5dB ) input impedance: 20K ohm Signal to noise ratio: 100 dB channel separation: 60 dB input sensitivity: 0.2-4 V Thermal, speaker short, DC reverse and DC offset protection weight: 2.0 kg Dimensions (LxWxH): 330 x 155 x 56 mm.