Can use a Theta DS Pro Basic III as a DAC?

Hi Kenny.---I'm posting because around 100 years ago I owned both of the dacs you mention.---Ya,ya, Mom told me a million times not to exaggerate,huh--.
I would guess you need one of them there new fashioned dacs with the usb connections.---I'm way behind the times in that area and I don't do the new down load stuffs. I would guess there must be a device with the usb stuff with a coax out??? But I don't know for sure.

Yes I am using one right now. Have found the M Audio gear works great as USB to Digital converter.
There are plenty out there that will work just fine...Good Luck

The Theta does not have a USB connection, but it does have a Toslink input. The Mac Mini has an audio digital out as a mini jack that may be optical. I'm not sure if they're compatible or if I'd be mixing apples with oranges.