coax out from blu ray player

[bigbear]

I understand that due to copy protection (HDCP) and/or bandwith limitations there are limitations on audio outputs from blu ray players. This question is for movies only: When using the coaxial output, with the player performing the decoding and downmixing to 2 channel, is the PCM signal that I am sending to my dac the decoded lossless (true HD, DTS MA) or the lossy (AC3, DTS) track and is the signal downsampled from 24 bit to 16 bit Thank you.

 

[twsecrest]

S/PDIF (optical and coaxial) can pass 2.0 (2-channels) of PCM digital audio, max of 24-bit/96k or 24-bit/192k.
Or up to 6-channels (5.1) of encoded (compressed/bitstream) of Dolby or DTS digital audio, max is 24-bit/48K.
So Dolby True HD Audio or DTS Master Audio (like 5.1 or 7.1) can not pass thru S/PDIF.
So the audio coming thru S/PDIF, like from a 5.1 or 7.1 audio tracks, will be about equal to a DVD movie disk, when passing encoded audio.
(but you are really asking about decoded audio)
Each Blu-ray player might not be exactly the same, with what downmixed 2.0 signal is sent thru S/PDIF.
Hopefully your Blu-ray player downmixed 2.0 signal is higher than 24-bit/48K.
What is the make and model of your Blu-ray player?

 

[bigbear]

A sony X700 but I am willing to try others - new or used. My understanding is that I do not need higher than 24 /48 because I have not seen any blu ray movies with higher than than and some are 16/48.

 

[twsecrest]

I'm not the expert, but DVD movie disks are limited to 24-bit/48K (20 year old tech).
So a modern Blu-ray movie disks should come with higher than 24-bit/48K, but I'm not the expert.