I have installed volumio last week. It is installed on a cubietruck. My new hddac1 from Marantz is taking care of the digital to analog conversion. I am very pleased with the set up so far. I had a minor issue with playlist not being saved at first. But i was able to resolve the problem. There is still a sampling issue when I switch from a lower res fike to 96/24 files.
Tempory solution is to stop reading file and press play again.
Many thanks to all those who work on the project.