Dobrescu George
Reviewer: AudiophileHeaven
A really great combination for someone into bass is to get a Fiio A5 portable amplifier and the Sennheiser HD 650. That will do you better than any of the fans you've mentioned.
But the question was about a headphone, not an AMP, no?
For the best bass headphone in that price range, I honestly nominate Meze 99 Classics.
I used to use Ultrasone Dj 1 Pro before, but Meze 99 Classics surpasses them in too many aspects to consider DJ1P anymore.