I'm missing an option to set a pre-gain for files with ReplayGain tags. Most PC audio players offer this because ReplayGain uses a quite low target volume.
While missing this feature usually is no problem when listening with the stereo, it sometimes is when listening with headphones on mobile devices. Because these often already have limited audio volume.

Maybe I can set something in a config file? There is already the option in the menu to change volume of internet radio streams. Or maybe this is a feature request...