Hi all. Some of you might remember the discussion I started about
building a mic split a little while ago. I've mulled it over a bunch
(when I have had a few moments) and decided that building my own just
isn't economical at the moment. If I was to spend the money to do it
properly, I might as well buy a system premade. The only thing I gain
by doing it myself is customizability and the burden of a lot of
soldering. In addition, since I lack enough mic preamps, I would have
to buy or build more (not a small task).

Then I had another idea. I think I can pull the audio off of another
part of the signal chain, after the mic preamps in the console (for
the curious, I'd build a box that will pull the audio off the insert
jack, while still allowing inserts on every channel). The problem is
that on that output, there is the possibility that I wouldn't have
exclusive use of that signal. So I think I need to use an opamp as a
high impedance buffer so as not to load down the output.

Questions:

1. Am I on the right track? If I wanted to "steal" an audio signal,
would an opamp buffer be the best way to do it with minimal impact to
the original signal chain?

2. Any recommendations on how to design a follower that won't effect
the audio signal too much?

3. Any better ways to do this that don't involve expensive transformers?

Thanks!

Josh
--
A common mistake that people make when trying to design something
completely foolproof is to underestimate the ingenuity of complete
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