November 23, 2012, 2:40 PM — Here's how you can use the equalizer on your Android Jelly Bean device to adjust bass and treble settings in your music.
1. Open a file on the default music player on your Android Jelly Bean device.
2. Go to Settings.
3. Go to Equalizer.
For more, see the original article at the link below.
50 Android Jelly Bean tips, tricks and hints | Tech Radar