As a suggestion...
Since NuPrime has an 8-channel (4 if all bridged) amp, how about giving it something that could help drive all those channels?
It wouldn't need to be something fancy like the HD-AVP, just a nice sounding DAC with 8 channels. No frills. No software besides the drivers to communicate with the computer, which NuPrime already has with the other DACs. Single connector (USB, or even Thunderbolt for the future) to the computer, where all the processing is done. No need for more. RCA and XLR outputs.
Clad that in an enclosure the style we have been accustomed to see from NuPrime, and that could be a nice companion to the MCH-K38.
Take it or leave it. Just a suggestion for a future product, since you guys already have lots of expertise in the field, but it just seemed to me that the MCH-K38 was lonely!