I bought a kit from - I believe it was - Weber speaker repair some time ago consisting of voice coil, cone, spider, etc. and would like to start the repair finally.
When looking at the original VC, I see that it has a couple of (maybe 12) holes in the circumference of the capton carrier. The repair VC doesn't have it.
I guess this "perforation" has the purpose of letting air flow along the VC and
influencing certain damping properties of the ensemble voice coil-cone-spider, so to say, the "motor".