Version 2.6.5 works fine

I really like Vox. I think it’s the best sounding music player for Mac but, like a lot of other reviewers, it started unexpectedly quitting on launch on my system. For whatever reason, Vox 2.6.5 is not appearing here on the Mac App Store but it can be downloaded from the Coppertino web site. I had to delete the Vox 2.6 app, go into ~/Library/Containers/ to delete com.coppertino.Vox and com.coppertino.VOXAgent, go into ~/Library/Preferences/ and delete com.coppertino.Vox.LSSharedFileList.plist, restart the computer, install Vox 2.6.5, and redo my preferences. A little work but the nice sound is back...

Night Warbler about VOX: MP3 & FLAC Music Player