Until I started to read some of the technical stuff on Inner Fidelity, I never gave much consideration to the earpads on headphones. It was a matter of comfort, or dealing with sweat on a hot day. Then I read that there was often an audible pad bounce in the 100-200 hz range on some headphones.
Next I see different measurements, particularly with Grado on-ear models using different pads. And theories of why tape along the circumference of a foam pad might make a difference. And modifications using silicone sealant instead of tape. Shades of Carol Doda!
Maybe I’m going down a rabbit hole, but I spent $8 on some “L-Pads” to try on my entry-level Grados. The S-Pads (more comfortable) don’t have a good spot to place tape . . .
Would be interested in hearing others experience with pads, and any actual science and/or measurement difference. Unlike cables, I can easily believe that pads affect seal and position, and therefore sound.