KEF Audio KIT100 System "subwoofer loud buzz" Questions

...subwoofer has started having a loud, obnoxious buzzing noise. There is no repair center close to me, but I've seen mention of a pdf file that can be sent with schematics or a repair procedure. I ...

subwoofer is making a loud buzzing noise, what do I do? You might have a bunch of bees living inside the sub? You have a bad set of Audio output IC's for the sub. There is two of them. TDA7293 REPLACE

...subwoofer power board in the picture above, with two new 470uF/35Vcapacitors. Now, it functions perfectly normal, and it is almost unbelievable to solve such an electronic problem requiring an expert ...

...very loudly. When music or other sounds are played i only get clear sound out of the right side. Subwoofer is not working and is distorted as well as the left output. Buzzing is constant! Anyhelp ...