Has anyone utilized these insert connections for anything?
"balanced analog inserts (S1, S2, R1, R2 jacks) which are post preamp but pre A/D.You can use the inserts to patch in analog processing between the preamp and the A/D converter.The send jack can also be used to send a mult of the input signal to another device while still using the A/D section of the ULN-2.This allows the ULN-2 to be used as an active mic splitter."