Can this be done with the Doepfer A-138o? I have only used it as an aux for modules in the past.
-- isolatediguana
I don't know if the A-138o (with the A-138p) has sufficient gain for external return. Doepfer's documentation is not very clear on this point. I suspect something like the A-119 Ext. In is needed.
I just ordered a Versio as well (Melotus, but I plan to flash Desmodus and Electus to try them out) but for more intrusive or modulated effects. If I want a quality blackhole or shimmer, I will still go to an external pedal.