audio amplifier 1.8ohm Stereo Power(RMS) :1300WX4 2.4ohm Stereo Power(RMS) :2100WX4 3.2ohm Stereo Power( ... 3-pin XLR, electronically balancedOutput Connectors (per channel)Binding Posts 2-poleClassTDTourClass ProtectionACL,IGM, AutoRamp, short circuit, DC voltage, ... current inrush, sub/ultrasonic inputOperating voltage, 230 V / 115 V nominal130-265 V / 65-135 V selectableVoltage Gain(dB)23, 26, 29, 32 ...