ANALOG INPUT CONTROLS

+48 V Button & Indicator	This button activates phantom power for condenser microphones used on that input. The indicator lit shows that phantom power has been activated for that channel.
Trim Knob	This controls input level into that channel for MIC/LINE XLR input (usually used for microphones)
Line Button	This switches inputs to the 1/4 inch line input jack.
Pad Button	This button reduces input level by 20 dB.
Signal Indicator	This indicator shows that the channel is receiving a usable input signal.