Which frequency setting would treble be?
On the iTunes equalizer, the first 5 bars are for bass, and the last 5 are for treble. the middle the middle two are the midrange, however some believe the middle 4 to be the midrange.
Suggestively, my favorite setting IN iTunes is R&B. but what you're looking for is, I believe the outermost settings on either side going inward to midrange.
so, start with the Flat preset and play around. once you get it, you'll get it.