How To Fix a Frozen Solid Car Subwoofer Thats Locked up and Wont Move

A subwoofer cone is supposed to move freely upwards and downwards to create a different range of bass responses. The most common reason why a car subwoofer is frozen when you try to push down the cone with your hand is because its blown. When the voice coil is blown from overuse, either due to overpowering it or sending a clipped signal is the coil will melt. This will result in the cone of the subwoofer to not be able to move upwards and downwards freely. You can confirm this by doing a simple hand test. If this is the case, you will notice that the subwoofer cone will not move down or up. The only way you can fix a frozen solid car subwoofer is by reconing the actual speaker. This can be tricky and costly, so you need to work out if the subwoofer is worth repairing. This is because sometimes its cheaper to buy a direct replacement from the car audio shop. Also if its still under warranty then its best to send it back and get a free replacement.

1) Remove the rubber surround from the blown speaker. This can be done by removing the glue using a small knife, going all the way around the speaker.

2) Now that you have done the hard part. You will now need to gain access to the actual coil. Using the knife to cut around the middle dust cap.

3) Then get the small knife and cut around the spider. This will detach the spider that is glued with the coil and it will come out as one unit.

4) Insert your new coil and connect the tinsel leads to the terminals on the basket. You will need a soldering iron to secure them on. 

Remember when you have reconed a subwoofer to not play it at full volume right away. You will need to break them in for the first few hours, playing bass test tones on moderate volume before you can bump it full blast. Failing to do so could results in another blown speaker

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