Maybe it is lost on me but I do not understand the appeal of the USB input function, pasted via the Schiit site:
Here’s where things get interesting: you can also connect two USB devices to the Urd. Yes, Urd has two USB inputs! Then, choose what you want to listen to—CD, USB1, or USB2—using the standard remote control. Now, you can run CDs when you feel like it, and stream when you want convenience, all with a DAC with a single USB input.
My DAC, and I feel like most every DAC that I have seen or is available (including nany of or most of Schiit's own products), has a USB input, several Coax, optical, and maybe AES connection. I plug in a streamer and CD player to the DAC, and used to plug a TV into it also, and could switch those inputs via its remote. So to me, most DACs out there already solve this problem that Schiit is suggesting is a value-add of this product.
Just saying or what am I missing...
