How to Fix a Blown Speaker: 3 Common Problems and Solutions (2024)

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Written byRegen Kengly

Last updated: February 4, 2024Facts checked

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1. 1

   The speaker cone is the most important part of a speaker.This is the main active area that converts vibrations from the speaker's voice coil into audible sounds.

   • If the speaker cone is damaged, it cannot reproduce these vibrations without sound distortion.^[1]
   • Most small cracks and holes in speaker cones can be repaired with a thin, white adhesive mixture.
   • Extensive damage may require cone reshaping, which is a complete cone replacement better suited to a professional.
2. 2

   The surround is made of foam that protects the speaker.This is what connects the cone to the speaker housing. It is often the first part to become damaged, because it withstands a lot of mechanical stress.

   • If the frame is damaged, replace it.
   • Surrounds are available in many common sizes.
   • Be suremeasure your speakerbefore purchasing spare parts.

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3. 3

   The voice coil causes the sound to vibrate against the cone.Without a properly functioning voice coil, your speaker cannot produce the sounds it is supposed to produce.

   • Voice coils can overheat and melt. In this case, you will need to completely replace the coil.

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1. 1

   Turn on the speaker.Make sure all power sources are connected and all cables are secure.

   • For car speakers, make sure that your car radio's display is active. Flickering car screens could indicate a power problem, faulty wiring, or loose connectors in the device.
   • For portable speakers, make sure the device is fully charged and the indicator light is on.
2. 2

   Test the sound.Play a song or video to check the sound. Don't play the radio, as the natural static electricity can interfere with your test.

   • Play a well-known song with a wide range of sounds. This will help you determine which part of your speaker needs attention.
   • Listen once at medium volume and then again at higher volume.
   • Avoid testing in areas with excessive noise. This may affect your audio test.
3. 3

   Listen for rattling, crackling, or muffled sounds.If you hear distortion with the volume set to a reasonable level, you most likely have a cracked speaker cone or damaged voice coil.^[2]

   See Also

   How much does it cost to repair broken car speakers?How do you know if your speakers are blown? NukustikHow to test speakers and cablesWhy do car speakers blow out?

4. 4

   Listen for a lack of range.Your speakers may be partially blown. You can see if your speaker has trouble with certain frequencies.

   • Listen to a song you know very well. This will help determine which components are disabled and reveal if your speaker is missing high, mid, and/or bass frequencies.
5. 5

   Note the lack of vibration.If you don't feel any vibration when you touch your speakers, this could indicate a problem with the internal wiring.

   • Speakers create sound through vibrations.
   • No vibration means no sound.
6. 6

   Visually inspect the speaker for damage.Turn off the power completely. Disconnect all wires. You will need to unscrew the cover or plate to access the internal components.

   • If there are holes or cracks in the speaker cone, repair them.
   • If the frame has deteriorated or shows foam rot, replace it with a new one.
7. 7

   Diagnose the problem.Depending on the problem you have, you may be able to solve it yourself.

   • If you hear crackling or buzzing sounds, the voice coil or speaker cone may be damaged.
   • Then, if you damage your surround, you can replace it.
   • These repairs can be done by a professional or at home.

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1. Professionals can repair major damage to speakers.This should be done if you do not have the necessary tools for the job, or if you think you may further damage the speaker by attempting to do so.

   • Car radios and systems will be subject to wear and tear over time. Take your car radio to a car radio specialist.
   • For Bluetooth speakers, the replacement parts can end up costing more than the speaker itself. In this case it might be better for youbuy new speakers.

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1. 1

   Turn off the power.This is very important. You don't want to shock yourself when handling the internal speaker components.

2. 2

   Remove the speaker from the shell or housing.You will need to loosen the mounting screws with a screwdriver or ratchet.^[3]

3. 3

   Disconnect all wires connected to the damaged speaker.Be careful not to pull or pull on the cords.

4. 4

   Inspect the speaker cone for holes and/or cracks.Your speaker may have minor damage under the cover. Inspect your speaker for visible signs of damage, such as cracks or tears.

   • Damage is mainly found on the speaker cone.
   • Repairing these damages improves the quality, but does not restore the original quality.
   • If you want your speakers to sound like new, have them professionally repaired or replace them completely.
5. 5

   Clean dust and dirt.A wipe and rubbing alcohol work fine.

   • Avoid using water or excessive cleaning agents as this may further damage the speaker.
   • Compressed air can help remove trapped dust.
   • Be extra careful, just like youclean your speakers.
6. 6

   Apply glue to small holes or cracks.You need an adhesive that ensures that the speaker cone remains flexible. Be careful not to make the adhesive layer too thick as this can affect its flexibility.

   • A ratio of 1:1 white glue to water works well. This makes the glue more flexible.
   • You can also use Flex Seal to repair the cracks.
   • Use a brush or steady hand to apply the glue over the damage.
   • Apply the glue to the front and back of the grille.
   • Alternatively, you can do that toouse a scout kit.
7. 7

   If necessary, gently blot the glue with paper towels.This is to soak up any excess glue on your speaker cone.

   • You should do this if you are using a 1:1 ratio of white glue to water.
8. 8

   Wait for the glue to dry.Wait at least 24 hours for the glue to dry completely.

   • If the speaker is used before the glue dries, you may further damage your speaker or reject the repair.
9. 9

   Reattach the internal speaker to the main body.Once the glue is dry and all damage has been repaired, you can reassemble the speaker.

   • Make sure to connect all internal wires.
10. 10

    Place the cover back on your speaker.Connect all wires to the fixed speaker.

    • Loosen all mounting screws to secure the speaker.
11. 11

    Test the speaker sound again.Using the same song or sound as the first test, give the fixed speakers a sound test.

    • Test the sound at a low volume first.
    • Gradually increase the volume.
    • If the speaker works as stated, problem solved!

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1. 1

   Turn off the power.

   See Also

   How to Test Speaker Output With a Multimeter (The Easy Way)

2. 2

   Isolate the internal speaker from the shell or enclosure.This may involve loosening the mounting screws.^[4]

   • Carefully remove the internal speaker.
   • The speaker cone and surround have been assembled.
3. 3

   Remove the damaged frame.Carefully use a sharp object, such as a knife or razor blade, to cut around the speaker cone.

   • Make sure you are working on a flat and stable surface.
   • Use one hand to hold the speaker firmly in place while the other makes the cutting motion.
   • Peel and discard the old packaging.
4. 4

   Remove the plastic ring around the speaker cone.You'll need a curious tool, like a crowbar, to make your way through the ring.

   • Go as slow as necessary to avoid breaking the ring.
   • The ring is held in place by glue.
5. 5

   Scrape and clean the old adhesive residue.You need to prepare the area for a new surround. Use a scraper or other sharp object to scrape away the old glue.

   • Use a lint-free cloth with rubbing alcohol for easy cleaning.
   • Also clean the edge of the speaker cone.
   • This will help prepare the area for your new surround.
6. 6

   Apply glue around the edge of the speaker cone.Use enough to secure the new edge.

   • You will need vinyl or PVA glue, which is standard white glue.
7. 7

   Apply glue to the new edge.You will need to apply the glue where the edge rests on the cone. Spread the glue evenly.

   • Surrounds are often cheaper than other components and are widely available.
   • If you have an 8 inch speaker, use an 8 inch surround.
8. 8

   Carefully attach the new surround to the speaker cone.Press the outline with your fingers to make sure each side of the glue touches each other.

   • Make sure the speaker cone and rim are perfectly centered before pressing down.
   • Make sure that no glue gets on the inner cone.
9. 9

   Let the glue dry for at least an hour.If possible, wait overnight to ensure the glue dries properly.

10. 10

    Glue the edges of the foam that meet the outer frame.You will need to lift up along the outside edge as you apply the glue.

    • Spread the glue evenly.
11. 11

    Wait for the glue to dry.Again, wait at least a few hours for it to dry properly.

12. 12

    Replace the plastic lid.

    • Remove any excess dirt or residue with rubbing alcohol and a cloth.
    • Your new surround is ready!

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1. 1

   Turn off the power.

2. 2

   Remove the speaker cover to access the internal components.Disconnect all wires connected to the damaged speaker.

   • Be careful not to pull or pull on the cords.
3. 3

   Remove the speaker cone and surround.

   • To remove stubborn adhesive residue, you can use sandpaper or a sharp tool.
4. 4

   Separate the cone and coil.It is secured with glue; Carefully use a sharp object, such as a knife, to remove the cone and coil.

5. 5

   Remove the damaged coil.Keep all other components separated and in place.

   • You may need to cut some wires to completely remove the coil and spider.
   • The spider is a part that ensures that the voice coil remains centered in the magnetic opening.
6. 6

   Remove excess dirt or adhesive residue.Use a lint-free cloth with rubbing alcohol for easy cleaning.

7. 7

   Insert the new coil.It should fit nicely into the available space. Attach a new spider around the coil.

   • Apply glue to the cone and attach it to the new voice coil, making sure it stays centered.
8. 8

   Let the glue dry.Wait at least 24 hours to ensure the glue is completely dry.

9. 9

   Reconnect all speaker components.Carefully place the speakers back into the housing.

   • Make sure the internal wiring is connected.
   • Attach the speaker housing to the enclosure and tighten the mounting screws.
10. 10

    Switch on the device.Make sure all wires are secure and connected.

11. 11

    Test the speaker sound again.Use a track with a wide sound range to test your speakers.

    • Test the sound at a low volume.
    • Gradually increase the volume.
    • If the speaker works, this is resolved.

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