A dream would be a board very similar to the hifiberry Digi+ I/O but with a 110 ohms XLR socket at the output.
Input is all right in RCA / optical because devices are for public. So their output are 75 ohms spdif or optical.
But output will go to professional devices (digital filters, DAC) with digital XLR input. (to support AES/EBU standard under 110 ohms)
this demand is very similar (or the same) to Dan demand.
Hardware development should be short (only the output shaper and socket will change)
Many thanks to accomplish my dream...