In article ,
Alan Rutlidge wrote:
The reason why the Shure transformer probably came set to 600 ohms as
the default impedance, is that 600 ohms is a common impedance for
professional equipment using balanced circuits.

It's actually rather rare these days. ;-)

IIRC, a common input impedance for a pro balanced mic amp is about 1k.

--
*If horrific means to make horrible, does terrific mean to make terrible?

Dave Plowman London SW
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