[sign3912]

So I wonder how can I use UR28M interface as monitor controller.

UR28M has output monitor controller function.
Then. I want to upgrade interface to UAD Apollo 8 for surround.

And Can I use UR28M as montiro controller with s/Pdif?

Then. Apollo8 S/PDIF out - UR28M S/PDIF In - UR28M Output to Surround Speaker (6 Output)

Please who helps me!
Thank you.