I've been busy chipping away on my recording and mixing skills (still think this is the best website of all times, thank you all), and am looking for some help setting up an outboard channel strip I have to loop back into my DAW.
My setup is as follows: Audient id14 mkii going into Reaper and coming out my DT990 headphones. (Monitors are packed away in the cupboard because of space and room limitations).
What I want to do is route a vocal track I've recorded out through my PreSonus studio channel (mono device) and come back into reaper to records the affected signal. Basically like a reamp without the amp

Been messing around with the i/o settings of both Reaper and the Audient mixer software but no joy. I'm falling just short of getting my signal all the way round.
Any help, as always, appreciated.