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Arny Krueger Arny Krueger is offline
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Default Attenuate or run hot mic directly into A/D convertor?


"anahata" wrote in message
...
Mike Rivers wrote:
I doubt that any of them use better than
1% tolerance resistors. This could unbalance the input to the preamp
and reduce the common mode noise rejection, but if you're feeding a
huge signal voltage to the preamp, this isn't likely to be a concern.


Doesn't the usual configuration for a balanced pad involve no ground
connection?


Yes.

In that case any common mode signal will hardly be attenuated at all by
the pad, and hence there will be negligible unbalancing of it either.


That's why most balanced pads have no ground.