New to forum and horn drivers, so I need some direction. Sorry for the length!
I recently purchased a pair of Altec 511b horns with drivers “from a VOTT” the numbers on the drivers are 33952 or 33953.
I tested the drivers with white noise from FM tuner off station. One driver was fine but the other popped and then performed similarly but at a subjective lower volume.
I took the driver apart to look at the diaphragm and there were dark spots where the leads attached to the diaphragm.
When I reinstalled the diaphragm and retested the first sound was a scratching/grating sound and then sounded normal.
Any thoughts? Thanks in advance for your consideration.
Bob