If you open the vent in the back, you'll find the cables coming from the connector into the driver baffle.
Mine are long, and so they obstruct the driver pretty blatantly. I can pull them to the sides and fix them with tape, but then that makes the sound brighter by a good margin.
Seeing as planars are sensitive to dampening, that comes as no surprise to me.
I did bend the headband before, but when the headphone came from Grizzlybeast, it was not as tight as a...