Yamaha MMP1 Setup Manual page 73

Assign the second talkback microphone
First, we will set up the second talkback microphone. Go to Patch – Input Patch, and choose
the channel for the second talkback microphone (in this example, choose "Analog In 6").
In MMP1, there are 2 busses for talkback and those busses can be turned on/off
independently. Also, there are 4 areas in Talkback Mic In section that are「1-1」,「1-2」,
「2-1」 and 「2-2」. This means that 2 talkback microphones can be assigned to each
bus ("1-x" and "2-x"). "1-1" and "1-2", and "2-1" and "2-2" are turned on/off
simultaneously so if you want to control 2 talkback microphones independently, they
should be patched to "1-1" and "2-1".
[Patch – Input Patch]
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