the question is the one in the topic, technically how to open up the cup of the AKG 242 HD and to look behind the drivers, thinking to add some foam. I've received this pair of can today (ok, little work out), and I think they are great, but bass is a little boomy. That's make sense?
I sense that putting my hand on the headphones while hearing it, make all sound a little better, bass more refined, sound little edgy, so I think I prefere a more "closed" feeling for this cup (damn, I should have buyed 272' instead...). Maybe a compromise is possible?
Meanwhile I've succesfully removed the little foam over the driver, and I think it opened up the treble, no harshness (the less volume, the better), which is very good considering a little lack of clearness in the beginning. Well, if someone possess a can of the 240's familys and can help, here is the place!
Thanks a lot