Well, I actually enjoy the Spotifys equilizer. Simple, easy to use and makes change to music pretty ok.
1. Is it possible that you can choose to make a diffirence for all media and apps or only for Spotify content?
2. Save equilizer settings for each song? Like, there is a lot of songs in Spotify, but not from all music you want to here same bass level, volume level, voice level and so on. Time by time users could have for each song their own equilizer settings.