Navigate speaker issues with our guide. Learn signs of damage, when to DIY (blown fuse, loose connections), and when to call professionals for buzzing, rattling, or physical damage. A speaker is a complex electronic device used to produce and amplify sound. Most people use the device to listen to songs and enjoy a movie with the proper sound effects in the comfort of their homes. Like all other electronic devices, the speaker does face its share of challenges. Most people face the dilemma of whether to handle these speaker damages themselves or seek professional assistance.