I'm missing the example, or the fascination part. It is a practical way to do it. This is my computer audio. I can't think of another way to do it other than my laptop sound card, laptop 3.5 (dac) and that all sound awful.
I don't have, or want a "getto blaster" and you can't get one that is a PC and edits video.
I have separate speakers, and an integrated amp (two monos, and preamp in one) and drive it from my separate laptop.
If the DAC is mature and inexpensive technology, it should be in the amp, the PC, the phone. But clear to me they don't all get the same thing.