Great idea. I would like #2 and #3 in the MOTM rack but already have plenty of #1 in my mixers.
Input and output could be one combined or two separate modules. I basically just need a two-in/two-out interface between MOTM signal levels and typical pro-audio equipment levels (+4 dBu).
Ivan
>
> #1: Mic In, Phono In, Headphone Out
> #2 Input module
> #3 Output Module