They install the same way Alpha's do...................and the stock pads. Very simple once you figure out how to get the white mounting ring off.
Yes, I know how they install, I'm referring to the fact that the thickness is not uniform, so you can rotate the pad to different degrees (like thickest part at back of ear, under ear, etc) which is what I was saying before. This rotation effects the sound, because it determines the position of the cup on the ear and the distance the driver sits from the ear.