best EQ from 400 series

made it look like he-400s 400i or 400 from outside but once you wear it, you can tell it is really cheaply made and audio resolution is like so bad, worse than some of 20 dollar headphones.There are many better option at 100 dollars, including sennheiser hd558 hd518 hd555 or akg k612. I want my money back

Most people hate this headphone because of annoying treble spike and low mid treble but if just need to tweek EQ to see its potential.

overall great headphone at its price.