Yaxi Pads for Fostex TH900, TH600 & TH-X00

Did the pads change the sound signature at all?

I got these pads and I think I figured this out, in the description it says that these "contour" to the shape of your head, which is why it tapers off at the top (or bottom depending on which way you rotate the pad). They aren't angled in the traditional sense from back to front, in the style of the TH-610/900.

I got the alcantara version of these pads several days ago and I have a couple impressions: On the "overview" page they advertise these with "slow-rebound memory foam" But, while they may have memory foam, I do not find it to be particularly slow-rebounding memory foam, at first glance they were barely distinguishable from regular foam. They aren't angled earpads like the pads for the TH/TR X00 series, which I guess makes sense because the stock TH-900 pads aren't angled, but they do taper a bit at the top (or bottom depending on which way you rotate the pad) where the seam is, which is a bit odd but I guess it's supposed to be what is mentioned in the description that they "contour" to your head. The alcantara itself feels nice, I wonder if it would be even better if they made perforated versions.