[dax]

I plan to build a  small  2 to 4 ch. mixer which would  take Mic preamp outputs and mix to balanced mono and also  be able to reverse phase and mute.

an example of application: 2 mics on one source to one track on tape being able to mix levels to tape

This is a very rough schematic i have peiced together from the Meta mixer section but am unsure how to implement the phase reversal?

Schematic

Any help is greatly appreciated
thanks

[Boswell]

This is a very rough schematic i have peiced together from the Meta mixer section but am unsure how to implement the phase reversal?

Use DPCO or DPDT switches on each XLR input to swap over the connections to pins 2 and 3.

You will need to use one of the standard active circuits to produce a balanced output.

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