This is one of the problems you least want to see, but once it happens, you will notice it almost immediately. Suppose you are running around and listening to your favorite song. Suddenly, a small part of the sound is distorted. When the high point passes, you start to hear a slight buzzing or crackling sound. You will listen carefully and make sure it is your left rear speaker, so you attenuate all sound to the left and back. The sound you hear will immediately tell you that the speaker has burned out.
This is just one way of speaker damage, but it is one of the reasons for the existence of the speaker service center in India. In some cases, repairing the damaged part of the speaker may be cheaper than completely replacing the speaker, so some speaker owners will use this method. But in some cases, the speakers are too old to be completely replaced, and even in some cases, the manufacturer can no longer replace some speakers for them. In this case, it must be replaced with a completely different speaker, or repaired by a speaker repair expert.
There are other problems that can cause damage to the speaker and require speaker repair services. In addition to bragging, curious children can also damage speakers. This is more than you expected! Loudspeakers are very interesting devices, especially when they have shiny metal shrapnel, and some children can't help touching them. If a child pushes the dome in, it may negatively affect the sound of the speaker and require repair.
Another method of speaker damage is wear around the foam. As time goes by, this may happen, it is not anyone's fault. When the foam dries out and begins to burst, the abrasion of the foam occurs. Both the speaker company and the repair company have blistering kits, which are easy to install for those who do their own kind. Of course, if there are other problems around the worn-out foam, you may want to have the speaker repair specialist handle all repairs immediately.
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