Came out of the enclosure and old iPod clock radio pictured. It has pretty decent sound for such a small driver, but I didn’t expect this oddity upon removal.
Came out of the enclosure and old iPod clock radio pictured. It has pretty decent sound for such a small driver, but I didn’t expect this oddity upon removal.
It’s the equivalent of magnetic shielding. The second magnet mostly cancels the magnetic field of the main magnet. This was more important when we used CRTs and the magnetic field would mess with them when you put a speaker close to the CRT.