Good Electronics Repairer - Kempton Park

Hi all,

I have two sets of multimedia speakers that I really like. One is a Creative G500 and the other I think is an Earthquake SN51. I'm having some issues with both units. The Creative subwoofer starts to distort randomly and the Earthquake subwoofer has started to hum and overheat and switch off. Not sure if its time to just get rid of them but as multimedia speakers they perform excellently.

Does anyone know a reputable repairer in the Kempton Park area?   

Thanks!