roskodan
Headphoneus Supremus
Correct.
Not correct - the optical output is the same as the headphone output...
yeah, all macs since 2006 have the mini toslink optical out, from the headphone out, that's why you get the mini toslink cable with the hugo,
when you connect it you can select the digital optical output from the system preferences audio menu like with the hugo when connecting over usb,
check VLC too,
also what settings do you use in audirvana?