ok, screw the "stealth deck".
I picked up one of those $15 cable adapters (female 3.5mm stereo > USB C ) ...., hooked up my tiny omni's to it, ran "field recorder" recorded band practice last night as a test.
flawless..., sounded great. The app is kick ass.
Am I to understand that there is some tiny A/D chip in the cable? Or is it just carrying the analog signal into the phone's A/D ?