Topic: HDSPe AIO analog loop connection

I'm thinking of making a loop:

- out of the AIO via the analog breakout cable (out ch.1-2)
- trough a stereo DI
- back into the AIO (in ch. 1-2)

Will this work and when it does, how do i set this up in the mixer?

Or do i need 2 extra inputs (ch.3-4) to avoid feedback?

thanks,

Daniel