n80, if your Mac is running OS 10.4 to about 10.6 you will see the Optical Digital Out Port setting in System Preferences/Sound as soon as the Y-cord is inserted into the headphone jack. Otherwise, Preferences/Sound will display Internal Speakers.
May I ask why you are changing to optical output when you already have the USB setup from the Mac?
I'll jump on the bandwagon and suggest getting a streamer as well. But if you have many audio files ripped, you will still want to access your iMac.
May I ask why you are changing to optical output when you already have the USB setup from the Mac?
I'll jump on the bandwagon and suggest getting a streamer as well. But if you have many audio files ripped, you will still want to access your iMac.