1 MIC/LINE input jack
These input jacks have built-in mic preamps. Connect mics, keyboards and guitars to them. These can be used with both XLR and 1/4-inch (balanced or unbalanced) phone plugs.
2 48V switch/indicator
This turns +48 V phantom power on or off. Turn this on ( ) to supply phantom power to MIC/LINE input jacks 14 (or 58). The indicator lights when the switch is on.
3 Hi-Z switch
Use to switch the input impedance of MIC/LINE input jack 1 (or 2). Turn it on ( ) when connecting a guitar or bass guitar.
4 PAD switch
This attenuates (reduces) the input signal of the equipment connected to the MIC/LINE input jack by 26 dB. Turn this on ( ) when connecting line level equipment.
5 SIG indicator
This indicator shows the signal level after adjustment by the GAIN knob. The indicator color changes according to the signal level. Lit red: -3 dB Lit green: -48 to -3 dB
6 GAIN knob
Use to adjust the input gain of the mic preamp. The range of adjustment depends on the on/off status of the MIC/LINE input jack switch (Hi-Z on channels 12 or PAD on channels 38). Jack Adjustment range
MIC/LINE input jack 12 (XLR) +16 +60 dB
MIC/LINE input jack 12 (TRS) Hi-Z off +16 +60 dB
Hi-Z on (TS) +6 +50 dB
MIC/LINE input jack 38 PAD off +16 +60 dB
PAD on -10 +34 dB
7 COMP knob
Use to adjust the amount of compression.
8 SEL button
Use to select a channel for parameter adjustment in the channel strip section. Channels with lit SEL buttons are affected by channel strip section adjustments.
9 REC/PLAY button
Use this button to switch between recording input signals to the SD card and playing back an already recorded file from the SD card. Status Explanation Lit red Input signals will be recorded to the SD card after passing through the compressor. Lit green An already recorded file will be played back. Playback signals are input before the equalizer. In this state, signals from input jacks are disabled. Unlit Files will neither be recorded nor played back. 7