As I mentioned, microphones are part of the Pro market, and there were lots of companies exhibiting them, such as these from Wunder.

Just because microphones are a professional product, and you might think they would look utilitarian, this one is gold plated. The rubber bands at the bottom isolate the microphone from mechanical vibrations in the studio.

Microphone preamplifiers, compressors, and other circuits are standard fare in production studios. Here are some by Shadow Hills.

And some by Manley Laboratories. These are all analog components.