Dave Plowman wrote in message ...
Assuming the XLR circuit is just a 'tie line', ie not permantly connected
to anything, that will do just fine.

It's got a black box with a 12 mic lines going "one way" and 4 returns
going t'other. I doubt if any of the mics or returns would be in use
on the day.

You recon the volts should get there ok Dave? (we're talking approx
40 feet in old money)