Thank you for your responses.
The idea of a DDC makes sense, but there aren’t many products on the market yet. Maybe the demand for a DDC isn’t all that high. Maybe it’s the fact that the i/o overlap so much with audio interfaces.
As for the streamer, it’s a great idea in terms of connectivity, but I’m not looking to stream. I much prefer playing saved files.
At this point, is it a driver/software difference? The DDC provides gain, but so does a preamp, which my DAC will plug into. I dunno.