Use APKPure App
Get Simple Tiny Small EQ 14kb old version APK for Android
La plus petite EQ vous pouvez obtenir. Téléchargement est 14kb, 16kb installé
No ads, no popups, just the Equalizer itself at 14kb to boost the bass, increase the volume of certain frequencies and improve the overall sound quality.
MOTOROLA ANDROID 5 NOTE: I've had several people contacting me about the app not adjusting any sound at all, I don't own any Motorola devices so I couldn't investigate this one my own yet. I tried a couple of other equalizer apps on a friends' Moto G and none of them seemed to works so it appears to be a global issue.
I hope we will find a way to get around this, stay tuned.
Project based on http://kevinboone.net/android_simple_eq.html uploaded with his consent.