I would love to have the option to send the mix masters to the main L/R.
When I have a group of headsets or handhelds for corporate events, I like to route these through a mix to the master so I can do a global EQ to the headsets in the mix-master. So I leave the channel EQ free for little adjustments per person. Then I can also use the auto feedback function for the headsets only. And leave the master free for system EQing.
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