I have a problem. Im using the Fiio E9 (+E7) combo running usb audio connection to desktop pc (sounds fantastic by the way). Only issue is I have no controls to adjust volume or mute from pc. As it's usb audio the + / - volume and mute shortcuts/media keyboard controls do nothing (they alter, see adjustment bars etc, but my guess is they are linked to the 3.5mm jack ports and not usb audio). I find it a little odd seeing as they are the SYSTEMS controls, and despite it being usb audio its STILL operating under Windows 8...
Anyone find a way to get multimedia volume controls to work with this?