I am hearing things I never heard before!
This app is awesome. I am not a professional audiophile but am a bit of a sound snob. The EQ presets in iOS are pathetic. The adjustments you can make in this app allow for you to hear sounds I could not hear before, even with average quality headphones. The changes in sound after tweaking the EQ are instantaneous without delay. Awesome app and VERY reasonably priced. Just hope the developer continues to support the app. AAA+++!
JoeShanghai about
EQ 10 - Equalizer, v4.3