Professional Amplifier XP series amplifier have reliability quality, huge output power, best tone. Suitable for gymnasium, band, showplace, dancery and disco. Stereo(8ohm)2x800WStereo(4ohm)2X1300WStereo(2ohm)2x1900WSlew Rate80V/usHum and Noise103db Frequencey Response20Hz 20KHzTHD<0.05%Damp Modulus>500Gross Weight32.00kgInput Impedance20Kohm