Speakers are a common part of most households and automobiles. It is not uncommon for a pet, child or our own clumsiness to cause damage to a speaker. One of the most common results of accidental speaker damage is a dented dust cover. It is possible to fix a dented speaker, but you must do it carefully to prevent permanently damage your speaker while attempting to fix it.
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Apply a little glue to the centre of the dust cover. Stick a match or a pin into the glue and let it dry for a little bit. Once the glue has hardened, gently pull the match or pin toward you. With some luck, the dust cap will pull out with the match. Once the dust cap is popped out, clean off any of the remaining glue. Be aware that this method can leave permanent glue residue on the speaker.
Fold a piece of tape so that the sticky side is facing outward. Apply the tape to the dented speaker dust cover. Apply as much pressure as you can without further damaging the speaker. Gently pull out the tape. If the dent is minor, it should pop out fairly easily. If the dent is more major, the tape may not help.
Try using cold and heat to pop the dent out. This method works for metal speakers. Use a piece of ice to cool down the area around the dent. Once it is cold, apply heat by using a blow dryer. The rapid temperature change may help the dent to pop itself out. Be sure not to apply the blow dryer for too long as long exposure to heat can damage the speaker.
Suck the dent out using a paper towel roll or a vacuum cleaner. If you have a paper towel roll, place it over the dust cover. Use your mouth to suck in a few times at the other end of the roll. If the roll creates an airtight seal around the dust cover, the suction can pull it out. You can also try a vacuum cleaner hose, but the suction power may be too much and further damage your speaker.
Poke a small hole in the dust cover using a needle. Bend a piece of wire, like a paper clip, into the shape of an "L" and poke it through the hole. Apply gentle outward pressure with the wire inside the dust cover to pull it back out. Use this method as a last resort because the hole can affect the speaker's performance and you may damage the voice coil inside if you poke the needle in too far. If this method does not work, you may have to completely replace the dust cover.
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