Has anyone found a good solution for generating S/PDIF output, either optical or co-ax, to feed an external DAC? I would prefer an I2S solution, but even a USB one would be great provided it works with Volumio and a Raspberry Pi B+.
Guess we are - I am loth to part with my external DAC, and like the idea of coaxial (and to some degree optical) SPDIF out. Is it worth considering the one with the output transformer?