Two Channels Bridgeable.Speaker/Terminal Connection and SPEAK ON.Double Cooling Fan.110/220 Volt Switchable.2x5 LED Input Level Indicator.Overload and Protection Indicator.Signal/Noise ratio:=102dB.Distortion:=1.0%.Frequency response:20Hz-20KHz less than-0.5dB.input impedance: balance 20KO.Input level:+4dB.Total Power 1000 Watts.