Here is a guy dismantling a 2441 driver and replacing the plastic throat with a new bronze one. My question is the obvious, since after this operation the magnetic circuit of the alnico magnet is going to be open, my understanding is that the magnetic force is going to collapse or loose part of its strength. Am I right or this operation is normal and can be performed with no loss of magnetizing strength?
Here is the video:
https://www.youtube.com/watch?v=wvWSg2tpFLk