Metti in conto un altra piccola spesa se usi il pc perchè l'onkio non ha ingresso USB, quindi devi dotarti di un interfaccia USB to SPIDIF
https://www.google.com/search?client=firefox-b&biw=1280&bih=673&tbm=isch&sa=1&ei=fiHHW6SCJuqTgAbZ-4igCw&q=usb+to+spdif&oq=usb+to+spdif&gs_l=img.3..0j0i30k1j0i24k1.91609.96327.0.96715.4.4.0.0.0.0.190.631.0j4.4.0....0...1c.1.64.img..0.2.326....0.N1Q6ah7Vk6Q#imgrc=_
https://www.google.com/search?client=firefox-b&biw=1280&bih=673&tbm=isch&sa=1&ei=fiHHW6SCJuqTgAbZ-4igCw&q=usb+to+spdif&oq=usb+to+spdif&gs_l=img.3..0j0i30k1j0i24k1.91609.96327.0.96715.4.4.0.0.0.0.190.631.0j4.4.0....0...1c.1.64.img..0.2.326....0.N1Q6ah7Vk6Q#imgrc=_