... amplifier 1.8ohm Stereo Power(RMS) :1300WX4 2.4ohm Stereo Power(RMS) :2100WX4 3.2ohm Stereo Power(RMS) :2500WX4 Switch ... 8ΩStereo Power(RMS)1300WX44ΩStereo Power(RMS)2100WX42ΩStereo Power(RMS)2500WX48ΩBridged Power(RMS)4200WX24ΩBridged Power(RMS)5000WX2Frequency ... channel)Binding Posts 2-poleClassTDTourClass ProtectionACL,IGM, AutoRamp, short circuit, DC voltage, turn-on/off transient, current inrush, ...