I wonder if there is enough room in there for a Lightspeed board.Even better, would have been nice if the designer incorporated a digital domain volume control, with a maximum analog output level switch-ability setting, so then there’s no chance of "bit stripping" no matter what system it’s used on.
Given the price this is worth checking out.Did you join to find out the price?
Pretty good reviews of the prototypes
https://www.head-fi.org/threads/massdrop-x-airist-audio-r-2r-dac-a-discrete-resistor-ladder-dac-for-...
https://www.superbestaudiofriends.org/index.php?threads/massdrop-rdac-airist-audio-r2-r-dac.6415/#po...
Cheers George