Certainly sounds interesting and being M, I'm sure it'll be utterly brilliant.
Couldn't help but notice that it doesn't include MRC.

I also wonder why M have called it the Ultra DAC. After all, it's similar to the 818 in capabilities. Maybe the market prefers and better understands the title DAC, as against streamer.

861v4/ID40/LPS, HD621, Roon, BAT VK-600se, Impulse Ta'us. Director/Heed Canamp with HD600s.