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stereo, single ended phono pre used in single channel balanced mode?

Posted by Ugly (A) on January 17, 2017 at 20:49:08

Can a stereo, single ended, phone preamp be used in single channel balanced mode? Consider the cambridge 651p for example since schematics are public domain and easy to refer to,

For example, from one channel of the cart you could route coil plus to pre in left plus and coil minus to pre in right plus.

The single channel balanced output XLR connector would then need to be hooked up to the pre outs as follows. Shield/pre ground to XLR pin 1. Pre out left plus to XLR pin 2. Pre out right plus to XLR pin 3.

Has anyone done this? Do you get the enhanced common mode noise rejection from being fully balanced?

Obviously you'd need two stereo single ended preamps to get a stereo pair of balanced preamps if it even works...

I happen to have a couple identical Cambridge 651p's available. hmmm

Edits: 01/17/17 01/17/17

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