New MacBook Pro drops optical audio out through headphone jack | AppleInsider
Watch Out, Dell - Apple's Coming for You! - Mark Ellis Reviews
When I was installing Windows on my 2015 MBP yesterday, I noticed that there was a light inside of the headphone jack. I never knew it had optical audio! You learn something
Apple Mac kaufen | MediaMarkt
MacBook speakers off, red light coming from the headphone jack - Ask Different
Apfelpage » MacBook Pro 2016 ohne optischen Audioausgang
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How To… Get Digital Audio From Your Mac To Your Receiver | Sounds Awesome
How to replace the missing optical-digital audio output on newer Macs | Macworld
What To Do If Your Mac Sound Is Not Working | Macworld
Need help turning OFF optical digital-out | MacRumors Forums