Do you think this behringer I have laying around can be used as an external DAC?
16-bit/48kHz, 2-channel USB Audio Interface with Optical Out
www.sweetwater.com
I think your question should really be in it's own thread, but after reading the
manual I understand why the confusion. I have a Behringer Xenyx QX1202 USB mixer and while a great tool and very capable, it's manual is very poor as well.
I'm guessing you want to use the
Behringer U-Control UCA202 to take audio from a computer to a receiver via Optical or RCA Cables. Without downloading and installing the free software from Behringer and having the UCA202 at hand, I can't be 100% certain the USB interface is bi-directional, but I expect it is. Like
@Trell suggested, try it and see. What do you have to lose?