Thanks for that. But I have to say the different mics would negate any subtle differences in the preamps. And I know they are "supposed" to be the same sounding mics but I don't believe it.
Yeah, the comparison was actually for the mics as I had explained, depending on what school your in(believer/non-believer) on the sameness of 184/140 it would be either a decent comparison of preamp or not-so-decent comparison of the preamp. I agree that for a true comparison on the preamp that the same(truly the same) mics would need to be used(although neumann says 184's and 140's are
truly the same mics.. that's all I'll say on the subject, we all know that's a whole different discussion that has eaten up a lot of database space here at ts.com) and if you wanted to get really crazy, have a manufacturer build and test 4 matched mics and record to a 4 track recorder, that would probably tighten up the sterility of the test environment as well as you could. Anyway, as I had said, it was just the best I could do and thought it might relate.