Internal Pre-Amps not working

[Oracle/Steve]

So I found yesterday that the pre-amps for mics plugged directly into the QU-32 were not being affected by the pre-amp gain knob. Mics plugged into the snake worked just fine. When I spoke into the mic a signal registered as coming in on the LEDs on the board, but on headphones I could barely hear the signal. Changing the preamp knob had no effect whatsoever. When I took the same mic and plugged it into the snake and changed the input source it worked fine. Has anyone seen this happen before?

[Giga]

Was the particular channel set for local input ?

Giga

[SteffenR]

@kimbells

I’m not sure if I’m understand what you are trying to say…
Do you use a stagerack like the AR2412 or AB168?

[Oracle/Steve]

Inputs are set to Local. I do have a stagerack AR2412 plus an AR84. I normally do sound from stage but use the stage rack anyway for all but my personal mic, my trumpet mic, and an external Fx unit that I bring back into a channel. All three of these are set for local. When I discovered that I had no control over the pre-amp I ran a mic cord to the corresponding stagebox channel, changed the input to DSnake, and both mics worked fine.

[Author]

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