Note 220V, UK Plug Input impedance30K balanced Input sensitivity0.775V residual voltage<5MV Operating voltage90 V-264 V+10, 50/60 Hz Power factorcos()>0.950>500W 8 ohms1000wx2 4 ohms2000wx2 Distortion<0.003% Signal-to-noise ratio112dB (A-weighted) Riworal K2 2Channel Power Amplifier 2000W*2 1U Amps Max Professional Power Amp For Line array / DJ Subwoofer Amplifier Professional two-channel high-power digital power amplifier The latest generation of ultra-low loss UPDM (Unipolar Pulse Density Modulation) audio power Rated power (RMS): 8 ohms: 1000wx2 4 ohms: 2000wx2 High stability, pre-heat and soft protection, standard 1U structure Each channel can drive a dual 15" or smaller speaker Output interface NL4FC, signal input and output interface XL AC100~220V power supply, 90-270V power supply fluctuation purification, pure copper transformer