AnEq Equalizer Free (de.ebbert.audioeq.free) on Google Play
*** If you like this app you might also want to check out 'afx', which adds a bass boost and virtualizer and better fits your tablet. ***Improve the sound of your device with a 5-band Equalizer. Create and store custom EQ presets. Once activated the EQ runs in the background and will process the global audio output.*** Please note: We can not test this app on all available devices. This app best fits android smartphones. Tablet users should go for "afx" ***This app is ad sponsored.Enjoy!