We get lots of requests for a "2 mic" solution. Some are for a dual channel mic mechanic and some are for something closer to 1 MM and one Harmony Singer in the same box, so that users could go back and forth between lead (MM) and backup (HS) singing.
Any interest in this type of thing?
If so, what would your particular use case be?
Would both singers need to control it?
Not quite the same situation, but, can the mic mechanic2 be plugged into the effects loop of a mixer, and if so would it require impedence transducers?