Reading this from the specs
Analog Inputs PROFILER Stage
INPUT:
¼ inch TS unbalanced, dynamic range >108 dB, impedance 1 megohms
RETURN 1-4:
¼ inch TRS balanced with ground lifts, dynamic range =105 dB, impedance 100 kohms
Reason I ask is this could make a workaround for my piezo equiped guitar.
I could use parallel path (which I can't do using the return input cause I can only use the same loop once)
Only issue I would be running my guitar into the return which has a different dynamic range/impedance (I'm using passive pickups)
Would this be an issue?