There have been great microphones for many, many years. The Telefunken U-47 from the 1950’s ( a large diaphragm condenser tube mic) commands massive amounts of money on the used market (it is still considered the best mic of all time for vocals), and the Sony C-37A is considered it’s equal by some. Mark Levinson used B & K mics in his fabulous recordings during the 1970’s and 80’s
The electronics in the best studios (Pink Floyd’s in London, designed and built by EAR-Yoshino’s Tim de Paravicini) are at least as good as any consumer gear, and there are quite a few companies making new tube mic pre-amps (including Manley), limiters, etc.
Tape recorders themselves remain a weak link, as a listen to any direct-to-disk LP makes obvious. There are a few exceptions, the custom made recorder used by Kav Alexander of Water Lily Records being a notable one. With advances in digital standards, that may eventually be a thing of the past.