Ive tried a lot of iPhone equalizer apps over the years and this one has been my favorite ever since I first tried it. Its gotten continuously better of the years with new features and refinements too. I love that its essentially infinitely adjustable yet easy to use. The only things I think its missing now are system wide equalization, which currently isnt possible on iPhone due to technical limitations, and also the ability to EQ the left and right channels. Im sure if the later is possible either, but Im not aware of any equalizer apps that offer that feature. It would be nice to help advanced users dial in the stereo imaging. Still a five star app regardless!
schirle about EQu - the quality equalizer