Do you experience those low-volume situations with multi-channel audio that is down mixed to stereo for playback on your Mac/PC?
If so… you could try disabling Settings > Plex for Windows/Mac > Player > Normalize Multi-channel Audio
That feature reduces the volume to avoid clipping when converting from multi-channel audio formats.
A request for the same feature exists already, and it has more votes.
Therefore this one is closed, to prevent spreading the votes across several threads, even though they vote for the same (or at least very similar thing).
Votes are given back to the users who voted on this request. Please think of re-voting in the other thread if you still want it.
Rules for the Feature Suggestions forum section:
Please search before creating a new suggestion thread.