I thought i had posted this yesterday and it vanished into cyberspace...
Anyway, i heard about this dac over at WBF, the What's Best Forum. There were some very favorable comments there. Seems this involves a new multipath technology in development for 10 years iirc. The specs are rather amazing. Here's the link and it has a couple of videos as well.
https://imersiv.com/the-d-1-dac/
I took a very quick glance (still packing for our trip). Looks interesting, but the price is a little steep - $12,000 USD.