ScubaMan2017
Headphoneus Supremus
Here's a dandy article for my fellow aural noobs. February, 2016 article. From how to geek dot com...
https://www.howtogeek.com/241828/what-is-the-optical-audio-port-and-when-should-i-use-it/
https://www.howtogeek.com/241828/what-is-the-optical-audio-port-and-when-should-i-use-it/