Blowing your speaker usually involves the cone tearing to the point where the speaker cannot play properly. The speaker will not be able to put out the right amount of volume and the quality will be terrible. The subwoofer will sound muddy, distorted and will sometimes have a buzzing sound. Oftentimes, the way to repair this situation is to replace the subwoofer cone. This process is infinitely cheaper than buying a completely new speaker and you can stand to save a good amount of money by doing the process yourself and not hiring a stereo shop to do it.
- Skill level:
- Moderately Challenging
Things you need
- Soldering Iron
- Cone voice coil
- Spider surround
Take the speaker out of the enclosure and isolate the speaker. Remove the screws from the speaker surround and disconnect all clips and connections from the speaker. Make sure you remove any connections from the battery before working on the speaker.
Use the utility knife to cut the speaker cone and the spider. Cut the spider by slicing through the lead wire that is located near to the speaker frame. Remove the recone kit assembly and immediately cover the voice coil gape using masking tape.
Take the speaker cone off the speaker so you can access the area you need to replace. Pry the cone off as well as the voice coil using the putty knife. Slice off the terminal wires that are protruding out of the voice coil. Remove the cone and the voice coil.
Remove any dust particles that may exist in the gap in the voice coil by blowing compressed air into the gap. Replace the old voice coil with the new one and put the spider around this new voice coil.
Squeeze a small amount of glue onto the cone and then place the cone onto the centre of the voice coil. Ensure the coil is not off-centre, which will lead to a failed cone replacement. Let the speaker sit in cool dry room for 24 hours to dry.
Squeeze more glue to the speaker surround and press it gently on the edges of the cone so it is flush against the cone. When the surround is set in place, apply very gentle pressure for a few minutes and then let sit to dry. Allow to dry 24 hours for the surround to set.
Use the soldering iron to solder the old terminal wires onto the terminal wires of the new cone and voice coil. Take these wires and run them to the voice coil so you can solder the wire to the voice coil.
Remount the speaker onto the subwoofer enclosure, using the screws from the old subwoofer. Turn on your stereo to make sure the sub is playing correctly.
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