

I did flag this to the dev but I'm not aware that anything was ever done. If you pay a bit of money for the prism music player for iOS that supports plex, it does support HD audio output to an external DAC, but last time I tried it had a bug with DSD where if you played a DSD track, it would cause the server to transcode to MP3 and then all later files of any format would also be transcoded to MP3. Elan said that it breaks their workflow or something. DSD audio is transcoded serverside and Plex currently has no plans to support direct output of DSD audio.
#PLEXAMP UPDATE#
Plex have stated that they intend to update plex so that it will output HD audio, but it's not there yet. You can tell this if you use a DAC that shows output format which I think the dragonflies do, in colour? My Chord mojo shows this. I've not tested recently but I'm fairly sure the same is true of the main ios plex app too.

it accepts the file at full res (for PCM files) but downscales it in-app.

I'm not totally sure about the plex app itself, but with plexamp, it plays all audio at 44.1/16. Please go to the relevant subreddits and support forums, for example: Build help and build shares posts go in their respective megathreads No referral / affiliate links, personal voting / campaigning / funding, or selling posts Welcome to /r/Plex, a subreddit dedicated to Plex, the media server/client solution for enjoying your media! Plex Community Discord Rules Latest Regular Threads: No Stupid Q&A: Tool Tuesday: Build Help: Share Your Build: Submit Troubleshooting Post Files not showing up correctly?
