There are microphone preamps that we use when we need some color or when we need transparency. The new SPL Crescendo 8 channel mic preamp was intentionally created to be as colorless as possible by using an approach that you won’t see in inexpensive mic pres.
The preamps in the Crescendo achieve the transparency using what SPL calls “120V DC Audio Rail Technology.” SPL uses its own 5th generation SUPRA op-amps that use ±60 volt power to make a 120-volt power rail. The result is more than 10dB more headroom, 3dB less noise, and a preamp that’s really difficult to overload.
Read more about this here: https://bobbyowsinskiblog.com/2018/10/15/spl-crescendo-mic-preamp/