Hi!
For stereo or mono signals:
It is possible to use analog and digital outputs @ the same time - they are independent connected by hardware. If you install ProFX in the DSP (so 10k1lt or 10k2, card dependent) you can easily switch between them. But it all depends also on your card model and -capabilities, tell us more about your system specification. I donīt know if 5.1 digital stream is possible at the same time, but maybe some other users know...
Greetings!
TravelRec.
