I'm not sure if I'm the only one with that issue but when I turn on equalizer, i got breath (IDK if that's the right word in english, it's "du souffle" in french, a "shhhhh" sound) at each blank in a song.
No problem at all when equalizer is off.
I tried several earphone, in-earphone and headphone but nothing change. I tried other music player instead of Google play music, same issue if equalizer is on.
I'm on stock and rooted, anyway to get that breath off with equalizer ?