arm: what is your felt like, it is very porous? how can you have it in front without completely blocking the driver?
It's a very soft and thin felt. Fairly breathable. I have no idea on the type/brand/whatever; it was something I scavenged from my mother's sewing cabinet.
I have a full sheet in front of the HE-6 driver, but a full sheet is too much on the 560.
Armaegis: You have both 560 and HE-6, right? I was thinking of switching the drivers into the other cup so you would have an HE-6 with the 560 headband and cups ,that would be easier than drilling holes in the HE-6 cups. It just takes soldering. But alas it's still a pain in the ass and I am undecided on the Vegan pads or not, if I use those then the 560 headband is probably out.
I don't have the 560, but had one on loan for a couple weeks and played very briefly with modding (it wasn't mine, so efforts were minimal).
My full pad config on my HE-6 (Beyer J$ leathers, full felt cover, twaron angel hair) brings the HE-6 down to a level I like and has a bit of a shelving effect on the treble range (admittedly I prefer a darker sound and get fatigue very easily), but this config is way too much on the 560 and sounds like mud.
I find the vegan pads ok but dark in a way that doesn't quite work for me. The tonality seems off, like it suddenly took a hit somewhere in that 4-8kHz range (I'm guessing? maybe an octave lower than that). I think it's just the Vegan absorbing a bit too much energy. The more reflective leather J$ pads but with diffusing from the stuff in front feels better to my ears.