Dieter wrote:
Is an op-amp considered good enough for very high end audio these
days?
You would use an instrumentation grade op Amp which would be better than
audio.
Would the mic input go straight into the ADC, or would there be some
sort of preamp first?
ADCs need a buffer amp and an sample and hold. There is also the issue
of high frequency noise (that could be aliased) that might need to be
filtered out.
Some premium, la-dee-da hand-selected FET? I'm thinking it would be
nice if the same PCB could be hooked up to either balanced or
unbalanced inputs.
This isn't a problem, just change the resistors on the op amp.
--
JRT
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