Question

I would like to control instruments setting (fat channel and effects) from the StudioLive 16.0.2 and have each instrument signal send to a specific amp (bass, guitar, etc) using aux output and not on the main output.

Answer 1

You can assign each Aux Mix sends to be Pre1 (Post HPF and Gate), Pre2 (Post Fat Channel, pre-fader) or Post (Post all Fat Channel processing and fader) from page 2 of the system menu.