Thanks for the answer bcarso!
So, if I were to use this circuit as an output buffer for something other than its intended purpose, say a mic preamp or some other application, I would
a) Omit D1, D2, and C5.
b) Drop the input impedance of the stage to something smaller, like 10k, reduce increase input coupling cap size. If I reduced the value of the input impedance, would I then want to reduce the value of all other resistors by roughly the same ratio except for the build out resistors? Although perhaps not...would I be reducing the circuit's 10v swing capability by doing this?
Is this at all correct, or am I off here?
What about the two 6.8k's here--what function are these serving?
I just noticed, too that this circuit seems to function as a phase splitter as well as a buffer...