Markitron
Is currently staging a hunger strike outside Gearbox HQ while trying to hate them to death
I just bought two pairs of these and they use optical.
I know about the audio extractors, but i'm not thrilled about having to spend more money on something that requires the use of an additional a\c plug, and could possibly introduce lag and interference or simply malfunction. Hoping Neo saves the day.
In that case I was specifically referring to someone using a receiver to power a 5.1 setup, if you have a look at my post above, I'd be fairly confident the Neo will have an optical output if it's a 4K Blu-ray player.
Unfortunately someone has to start phasing out optical cables sooner or later, it's 20 year old tech, looks like it's possibly beginning now. 2x HDMI outputs will need to be standard eventually.