Shure SRH840 by hakanai
They have a similar midrange bump to the 7506's that makes distortion come right out at you, but they also have the ends of the spectrum that the 7506's seem to be missing. Not dead flat but decently flat, definitely nice and informative.
Build quality is good, and they are comfortable.
I wish they folded a little bit smaller. The wire detaches from the ear cup, which is nice. It would be nice if the offered a straight wire as an option to the coiled.
All in all, they are nice and the only thing I would consider better at the price is the Beyer DT770 250ohm. But those will sound weird to a long time 7506 user.