Try this EQ on the K702

https://i.imgur.com/ELAEvJU.jpg

The pair I had sounded tinny due to the push at 5khz so I could not stand to listen to them without EQ. But man can they hold an EQ without distortion. The bass is much better with this EQ than they were with the sticker mod (don't even bother, it ruins bass detail/texture and makes the treble way harsher).