GREQ
Headphoneus Supremus
In my experience, SFI drivers sound their best with the kind of pads that are already being used.Not sure if these have been posted here so far. I recently got the monitor version of the ATH-2 phones in near mint condition. That is ATH-2M. Very little information on the net about them. They don't sound so good in stock form, pads are hardened and the right phone cable needs to be resoldered or changed, it has interruptions when it moves.
Some photos for your enjoyment.
Now to find some time to open them up and apply the mods.
Question for those of you more knowledgeable: where can I find some pads that are good replacements? I tried some 8 cm chinese pads but they don't go so well around the exterior of these phones.
So I would try to find a replacement that closely matches the originals as much as possible, and use double-sided tape or the stronger double-sided tape you can find for use with fabrics (usually you can find this tape in your local haberdashery).
You might have some luck searching for Pioneer or AKG 'DJ' model replacement ear pads. Some of them should be about the right size.