... ,1W/8Ω)20 Hz - 34 kHzTHD 20 Hz - 20 kHz for 1 W<0.1%Signal-to-Noise Ratio>112 dBAChannel ... 2-poleClassTDTourClass ProtectionACL,IGM,AutoRamp,short cricuit,DC voltage,turn-on/off transient,current,inrushOperating voltage130-265 V / 65-135 V ... ×180×500mmNet weight(kg)12.5Gross weight(kg)18 Amplifier Module for Active Speaker, Karaoke Mixing Amplifier