[Deiz]

Recently I noticed a good bit of dirt and hair build up on my pads, and the inner foam liner.

I removed the pads, gave them a rinse, and picked the hair and dust out of the foam liner. However, looking at the liner, specifically the area where the pad supports click into the main earcup, I see a deep indentation that's got some holes happening.

I know I can get replacement pads from Sennheiser for $26, but it seems silly - If I started using the liner from that set, once my current pads are starting to crush down, I'll already need yet another liner.

Thus, it'd be handy to have some extra foam liners around, especially if I'm going to be washing my pads every few months.

 

[beetle-juice]

You could use speaker cloth on yours. I have been using it on my HD580s since the foam fell apart.

 

[Maxvla]

I took mine out on purpose long ago, they were touching my ear and annoying me. People say it improves the sound. Don't know for sure about that, but mine have never had problems due to the liners missing.