Sure! It's really simple inside = a large space.
Good to know about the drivers being similar, might see about some for a project.
Very even keeled, nice and open sounding, nothing stands out more than anything else basically. As I say I forget about them and get into the tunes all the time, been using them quite a bit.
I'll have to look at your post and specs.
Those are Fostex T50RP pads by the way, stock ones were like old pioneer things. Similar opening size,...