... to Noise Ratio20Hz~20KHz,8Ω load,A-weighted>102dBInput CMRR(common moderejection ratio) @ 1KHz>79dBChannel separation(Crosstalk)@ 1KHz>79dBDamping Factor 8 ... fans,front-to-rear air flowLED Indicators Front panelPower-ON,Mode,Clip/Limit,Signal,ProtectionLED Indicators Rear panelNoInput Connectors3-pin XLR ...