I have a Sony BDP-s6500 and any input would be helpful before I waste any money on a digital coax to optical converter and coaxial cable.
Should add that I have asked Sony the same question but to date I've had no reply
Best answer by Lucid AV
I think part of the issue is there are plenty of ways to get this wrong i.e. going through the TV on HDMI or setting the coax audio menus wrong. But there's only one way to get it right, and so that means the odds against success.
The only way you can really be sure is to hook up the BD player to a proper AV receiver and see what the front panel or onscreen display shows up that the amp is receiving. That's a bit of a P.I.T.A. for something that other brands manage to do without issue, but then again I suspect Sony are having their players made under license by a 3rd party so might have been cost cutting a bit too deeply and got caught out.
FWIW, the coax to optical converter shouldn't have an issue handling DD5.1, so that bit of it is straightforward. The cost of these things isn't huge either; about £12 sterling or $12-£14 USD. Similarly, coax cables aren't pricey either £1-£2 / $2-$3 online.
Your player audio settings should be:
Digital Audio Output: Auto (if set to PCM then coax will only output stereo and never DD5.1)
DSD Output Mode: Auto or Off, it doesn't really matter when there's no DSD-capable AV receiver connected
BD Audio MIX: Off (if set to On then the BD player will try to play directors commentaries and audio description along with the main sound. You don't want that.)
Digital Music Enhancer: Not relevant
Dolby D Compatible Output: On - that's the whole point of the exercise
Audio DRC: Not relevant - set this as whatever you prefer
Downmix: Surround - this should only affect the sound when the BD player is outputting PCM stereo audio. It's whether you want that sound as plain vanilla 2 channel (stereo) or if you want it with Dolby Surround encoding added. This is what you'd decode using Dolby ProLogic
I hope this helps.