... matched parameters of Bi-amp. PA, P series Bi-amp and DP series processors... Pro Amplifier: PA seriers 4CH audio power amplifiers combine ... 8Ω load,10dB below rated power,60Hz+7KHz<0.05%Signal to Noise Ratio20Hz~20KHz,8Ω load,A-weighted>102dBInput CMRR ... rear air flowLED Indicators Front panelPower-ON,Mode,Clip/Limit,Signal,ProtectionLED Indicators Rear panelNoInput Connectors3-pin XLR,male and female ...