How to assigne FeedBack Assistant only for Mic inputs?

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1

My question is : How to assigne FeedBack Assistant only for Microphone inputs ?

Synth or Electr. Guitar do not need FBA, in addition, could be a long sustain confused by FBA ?

Thanks

2

HEllo.
FBA can be set only for the outputs.
If you need it only for a specific channel I would send that channel to an AUX, then physically (link with a cable) feed that AUX to another input (combo jack is the best).
Set channel Prefader and its fader down and adjust volume with the AUX fader.

3

OK, thanks for quick response