This forum got me looking thru old boxes and storage (I found lots of old Polk, Adcom, SAE and dbx literature in the process), and I forgot about an old pair of M&K Satellite II's and a Volkswoofer III that I put in the storage closet many years ago ( i bought them in 8/1981--I actually found the very-faded receipt).
Anyway, the woofer (6-1/2" diameter) on the satellites buzzes. It looks like some of the materials just got too brittle and dried out after all these years.
Does anyone know of a repacement cross-reference? It has to be an exact fit for diameter and hole pattern, because of the way they are mounted.
There's no brand on it. Just a serial number (Maybe M&K made their own drivers; I forget).