JVC V570. It has the "super bass" system.
Edited by musiclife - 1/14/13 at 9:37am
I have a pair of Sony XB700s with a FiiO E17 amp on my iPhone with bass booster turned on and the bass level at 10 on the amp and let me say it was unreal the first time i tried it would definitely recommend them for a bass head like myself
The Xb500s have a lot of bass, so do the Monster Turbines. You would be happy with either one of them and the bass boost on your fiio on :). HFI-580s were probably the hardest hitting, but I cant stand the comfort.
I'm selling a pair of xb500s if your interested! Only $40 and I havent even been messaged yet.