here's my setup for my iphone, not really sure what i'm doing though

Yup, for my iphone! I'm not an audiophile so i don't know all the terms and such, but i can say that these fit my listening needs perfectly. It's got great bass that's not too overpowering, but also has detailed and clear sound, i don't know any other way to put it, haha. Imo the SQ is great for the price. I like to listen to a lot of Jack Johnson and it's able to carry the songs very well.
With the amp, my ears aren't sensitive enough to hear much difference but the sound is a bit cleaner, and with the bass boost, the headphones really get pushed to the max with the bass, but the SQ is still able to be maintained.
A keeper for me.
Maybe i'll learn more about all this audio stuff in the future, haha.