How to fix blown car speakers

Written by cee donohue
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How to fix blown car speakers
A blown speaker can sound fuzzy and distorted. (speaker image by Byron Moore from

If you like loud music when you drive, you may have blown a speaker or two. You can usually tell if the speaker doesn't put out any sound or if there is a fuzzy, distorted sound when you turn up the volume. Typically, the problem is that the voice coil separates from the cone or there is a torn wire. The good news is that you can fix them yourself with a re-coning kit.

Skill level:

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Things you need

  • Re-coning kit
  • Screwdriver
  • Putty knife
  • Compressed air dust cleaner
  • Soldering iron
  • Glue

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  1. 1

    Determine if one or both speakers are broken. If you have separate speaker controls, turn the volume down on one while you test the other. If not, just put your ear to each speaker. Turn the system off before removing the speakers. Use a screwdriver to remove the speaker enclosure.

  2. 2

    Disconnect the voice coil wires that are attached to the speaker. Using a putty knife, remove the spider, which is the disc connected to the cone, along with the cone, the foam surround and any glue surrounding the damaged speaker.

  3. 3

    Using compressed air dust cleaner, remove any dust particles from the speaker before installing the new parts.

  4. 4

    Replace the old voice coil followed by the new spider. Be sure to wrap the spider around the new voice coil. It is recommended that you follow any instructions that come with the re-coning kit.

  5. 5

    Apply glue to the new speaker cone. Making sure the cone is centred, attach it to the new voice coil. Let the glue dry for 24 hours.

  6. 6

    Apply glue to the foam once the glue has dried on the cone. Place it on the edges of the cone and frame and let it dry for 24 hours.

  7. 7

    Using a soldering iron, attach the wires to the cone and voice coil. If the new cones don't have wires, connect the old positive and negative wires to the terminal wire. Another method is to strip about an inch of the speaker wires and wrap them around the speaker terminals. Secure the connections with electrical tape.

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