Thanks Guys
So what you are saying is that when my headphones are connected to the Bahamut I will hear what I would hear if the headphones where connected to my AMP via the HDMI output?
I know that my laptop speakers and phone Jack will only play analogue.
But if I select the Bahamut as the default audio device then the s/pdif will pass through the USB port and into the headphones directly?
Hope that's correct summary!