the K-01XD is one solid piece of work and I was so allured by its appearance. The concern I have os would it work with Roon Nucleus+ which I have sinked in a lot of time and effort in building up the library. Of course, back ion my mind, I was also tempted to partner the Esoteric with an Aurender W20se, or if funds does not permit, then a N10 probably cause I know this combo does work.
Lumin has specifically added support for native DSD512 of K-01XD. If you choose to use another brand of streamer, better check whether they support Roon Ready and whether they have already added support for K-01XD DSD512 - this usually does not "work" automatically until some firmware change is done to the streamer.