I'd like to replace the headband pad on my Sennheiser HD580s? How do you do this? I can see some ways to do this, but...
On the inside of the headband there are 2 clips (they have the 'made in Ireland' inscription on them).
You need to flip them open with a flat headed screwdriver, or something similar. Just make sure to fully extend the headband first.
The clips will come off completely and afterwards you can slide off the foam pad and replace it with a new one.
Theres a YT video showing how to do it.
You basically carefully pry up one of the little plastic "made in Ireland" pieces with a butter knife. You should be aware though that those parts can become brittle over long periods of time. Another option once the foam padding is worn completely flat is to use a beyerdynamic snap-over padding. Thats probably what I am going to do in the near future with mine. I could have sworn I saw some pics of senn cans modded this way... let others correct me though.