I am running JR 25 and have noticed that since installing it the volume streaming to my old Sony SMP-N200 and through my pre-amp/amp set-up has increased. It is actually at the level that even on the lowest pre-amp volume setting it is louder than I like for background music.
I don't see any options other than futzing with the analyze volume tool but I really like having that operate as preset by JR and not manually adjusting that. Any other options people know about for streaming (DLNA/UpNP volume?