hemipowered007
Headphoneus Supremus
I have some disks I made for the PX100 driver. They fit a Grado cup. The hole in the middle is 1.3/8.
I have a few extra.
Theyre 1 5/8ths, 40mm driver grados are 45mm. But what I'm now doing(don't have grado pads anymore but still have everything else) making cups like people have for Beyer pads. Just cheap "adapter" cups out of poplar. Well see what happens