Input  | 
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Mute  | 
Mutes the channel.  | 
Gain  | 
Sets the amount of amplification or attenuation to be applied to the signal. The valid range is -95dBu to +30dBu.  | 
Full Scale  | 
Full scale in the A to D converter. You can select 12dBu, 18dBu, 24dBu or 30dBu.  | 
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 See also Slot x: 4 Channel Mic Input (green) Slot x: 4 Channel Line Output (blue)  |