Just to get this out there, MST of FiQuest fame is working on a cool, tiny DAC for portable audio. My review isn't yet done, so cheer me on. This thing is tiny, and sounds good. I think it is also pretty cleverly made. OEM'd by iBasso, there is a lot of similarity in its extruded lines: faceplate, main case, and even battery component is familiar, but a good melding of MST and iBasso.
It is easy to get into, change battery, and easy to use, providing you have optical output. For computer audiophiles, this is a GREAT addition, though you'll have to have a real computer, not a cheapo HP or something.
Because the Cio mb sports dual DAC chips, it isn't too far-fetched to imagine that MST could pull a balanced DAC out of this and ... a balanced amp? Who knows, and for the moment, who cares? Why I am excited is many reasons, but optical is just great for catching low CPU usage for music/movies from a computer, or instant plug-in ability for real audio systems.
Review will come later.