My setup is usually just a Motorola Moto X with rocket music player, which does roll off on the low end, but every where else, the clarity is great for me.
The head phones I bought were a pair of Sentry HO410's and they were a little lacking on the upper end, so I switched out the pads for the ones on a set of Sony headphones I had laying around without a cloth filter on them, which improved the sound a bit. I also opened up some bass ports to get a little more low end too.
However they still lack something, and it is hard to describe for me since I am new to this. It is somewhere in the upper end, because I here it when listening to Empire by shakira (the violins in the background are a little recessed). I also notice it in the soundtrack for Divergent by Antonia pinto.
I know that they are cheap 10 dollar headphones, but I figured they would be easy to mod and get better sound from later. Does anyone have any ideas for me?
P.S. I also use the Sony MDR-XB50 IEMs as a reference, and I do use the EQ some to tweak the sound to my liking, even though many people say it can distort the sound.