If you're running out of mic inputs in your current setup, then the Focusrite Scarlett OctoPre preamp is the solution.
The Focusrite Clarett+ OctoPre is an 8-in/8-out ADAT preamp/audio interface that harnesses the sound of the renowned Focusrite Studio Console. Capture audio sources with maximum detail via eight clean-and-discrete preamps.
In addition to the enhanced 2nd generation Scarlett preamps, the brand also offers the OctoPre Dynamic, a full AD/DA converter and analogue compressor. It also supports ADAT functionality for expansion.
The Focusrite ISA 828 MkII wields eight ISA microphone preamps, each of which feature a Lundahl input transformer. This 2U-sized, 8-channel rack preamp also boasts variable input impedance, giving you extra options.
This double mic preamp amplifies 2 mics or 2 instruments and is easy to mount in a 19-inch rack.
The Focusrite ISA One is a stylish one-channel transformer-based microphone preamp.
The Focusrite RedNet MP8R offers the ability to convert eight XLR inputs, each equipped with a high-quality microphone preamp for genuine high-end performance, to a digital Dante signal.