Re: Learning resourses on Microphones?
IME inexpensive tube preamps don't live up to the hype. At lower gain settings they don't sound all that different from the preamps in a decent audio interface. Running the gain higher is often problematic as the increased harmonics usually comes with a total loss of clarity. You'd probably get more mileage out of a larger microphone collection rather than different preamps.
I absolutely agree this this line of reasoning.
Interface preamps are worlds better than inexpensive outboard preamps by a country mile.
An SM57 is capable of getting incredible sounds when paired with a great microphone preamp. I use SSL, but there are so many that would work, and are not necessarily high end: Golden Age, Black Lion, and Solo immediately come to mind. Above that tier, would be Grace, Daking, api. Above that, Neve, SSL, Shadow Hills, etc. I am talking merely PRICE here, not necessarily in terms of quality.
A Golden Age or Black Lion preamp will yield terrific results. If you need multiple channels, the Focusrite OctoPre is nearly impossible to beat.
TL;DR. Just use the microphone preamps in your interface. Use outboard only if you have +$500 to invest.