I've been wanting to take my 840 drivers our again and do a custom enclosure to get rid of the resonances. The drivers are pretty decent, and the headband assembly (although ugly) is pretty comfy. Maybe I'll restart that. I put them in an open enclosure before and can't recall exactly how they sounded, but it wasn't bad. If you're also down to mod, let's do it and see if we can make this into an alive thread again.