First off, I hope this is mostly on topic.
I am in the process of modifying the design of a raspberry pi like device to fit it with a 5 pin xlr jack for connecting a stereo intercom headset. I know the pinouts of the two connectors are basically compatible, meaning I can connect headphone ground to headphone ground, right to right, etc.
I was wondering if the levels coming out of a consumer audio product using a TRRS jack would be at all compatible with a pro level headset or if I would have to use some sort of level shifter.
Edit: I have googled this, but all it comes up with is questions about connecting an ipod to a mixer via a 3.5mm to xlr converter. No info specifically about headsets.