Hi, I recently bought a used MJ acoustics MJA pro 50 sub from an auction. It's in lovely condition and works fine for about twenty minutes then it develops a low frequencie hum/buzz that persists even when the audio signal being played is stopped. I've got it in bits not but can't see any obvious signs of damage. I'm also struggling to source a schematic. Does anybody have one? Is it worth contacting MJA? I've heard not so glowing things about their willingness to divulge schematics.
Any help much appreciated.
Best wishes,
Craig
Any help much appreciated.
Best wishes,
Craig
