Originally Posted by MattTCG
Sounds like you are fashioning your own version of dogpads.
Also, for the he400 you wouldn't want lambskin as leather just doesn't seem to do these justice.
Matt, Actually, I was able to get some high density 1" foam. It's not nearly memory foam, but it does retain its shape and will, or should hold up well. I'm kind of focusing on the Brainwavz HMT type of pad - or, the Fischer Audio FA-003 (MK I) pads, which were a bit more supple than the current FA-003 MK II pads. I do realize I could just go with some Stax pads - but, at a cost. The leather was already at my house asking to be used.
As to how to approach the HE-400 style pads. I could make the replacements a bit more like the Fischer Audio FA-003 MK II, with a bit of a thicker and taller pad. I could use the inside section to sew in a piece of velour to see how it controls the frequencies on the HE-400, like the HifiMAN velour pads do.
The fact is, there are so many options and ideas, It would take me two years to get all of my own stuff executed and on the path the completion. Meanwhile, I'm building a custom Canare cable for the Fostex T50 and then another custom Canare for the HE-400s, too.