EQu App
When i first bought this app, I was really mad. It didn't want to work properly. It almost popped my beats by dre headphones and my home sound system subbzz. It was giving off this weird buzzy sound. I deleted it and not until recently did i give it another go. And i have to say, with the new update, it works perfectly fine. Actually, I use this rather than the normal iPod app. Try it out. EQ your music to what ever you want.