https://feedbackmodules.com/products/pre-bx
Try this. Manufacturer by feedback its listed
-- joncharliefeathers
Ah ok, this module, I also noticed it comes in a DIY version:
https://www.modulargrid.net/e/feedback-cp3plus
https://feedbackmodules.com/products/cp3-mixer
https://feedbackmodules.com/products/cp3-mixer-diy-kit2
Thanks, will have a read.