But thats just it, a board in this price segment already comes with a dedicated segment for audio and it has very good audio at that. A DGX wont make any difference on that. So just get a proper board. I have an Asrock z370 with same audio chip and if sounds pretty damn good, big step up from my old Z77 one (which happens to be a Gigabyte
).
Thats why Im saying an additional sound card is silly when an Alc1220 is properly implemented. I have zero EMI here even when running at high refresh... and EVEN when recording from an audio passthrough that is fully analog....