How do you fix a blown voice coil , - Jl Audio 12W6v2 Car Subwoofer

Figure out if its a blown coil or damaged cone

1. Blown Coil:

The voice coil is the component, which amplifies the current run through the speakers. If you doubt that the coil is damaged, connect the terminals of the coil to a multimeter, and if there is no resistance detected, it could be because the coil is damaged.

2. Damaged Speaker Cone:

If there are no issues with the coil, the next possibility can be a damaged speaker cone, which can be detected easily. In normal condition, since the subwoofer is built on a suspension system, the cone is easy to move. Look for the following signs to understand that your speaker cone is damaged:

• If you could gently take the cover of the subwoofer off and check for the movement of the cone by gently pushing along the sides
• If the cone is rigid and does not move its indicator

Once you make sure that you have a blown subwoofer, the next step will be deciding on how to replace it. Imagine if your subwoofers can be fixed easily with minimal efforts within a set budget rather than buying a new one.



Then

1. Detaching the speakers:

Use a screwdriver to take the speakers from the place where it is mounted and take off the attached wires. After that, separate the surround and the frame by removing the glue on the frame edge by using a small knife or a sharp object like a tester edge. Be very careful when you do this because the frame edges can be damaged.

2. Separate the voice coil and speaker cone:

Using the same small knife or a tester edge, slowly take out the voice coil from the speaker cone. Cut all the terminal wires and keep the voice coil, speaker cone, and spider separately in place.

3. Fixing the new voice coil:

Clean the trapped dust particles in the voice coil gap carefully by using the compressed air. The voice coil is the piece of wire that is attached to the speaker cone, and that is responsible for amplifying the current, which is passed through the speakers. Remove the old voice coil and fix the new voice coil within the space if the problem is with the coil. Place the spider around the new voice coil, replace the spider and then the speaker cone in the middle. Don't forget to apply enough glue so that the cone doesn't come out. Let it dry for about 24 hours.

4. Fixing the speaker frame:

After it is dry, apply glue on the surround to fix the speaker frame and the cone in the right position. Now we are about to reassemble the components of the sub-woofer.

5. Fixing the wires:

Once all the components are put together in the right place, use a soldering iron to connect the old terminal wires with the new voice coil terminal wires, if the voice coil is replaced. If the new cone has no pre-attached wires, use small wires to the terminal wires, and then create small holes in the cone. Place the wires into the holes and connect them to the voice coil using the soldering iron.Now the connection is also reestablished.

There is little chance that you can do anything about it. The exact voice coil would have to be identified, the old ones taken out, and replacing them is technically difficult/impossible without the proper tools and experience.

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they best way to do this is with a multi meter on the OHMS setting.... to do this set the multi meter to the least ohms setting, usually it reads 20 or under. Connect the wires to each voice coil (by the speaker wire connections) if the multi meter reads 2 to 4 ohms whichever your speaker is, then the voice coil is not blown, but if it reads 8-10-12-14 or OL which means open loop then the coil in junk.

Speaker lesson here. For space and time, I'll not get into certain nomenclature. Working from top to bottom, you have the cone, rubber surround, basket, spider, voic coil former, voice coil, and the magnet. The binding posts are connected to the tensil leads which connect to the spider and the voice coil. As the woofer is positively + and negatively - charged, it creates a magnetic field which moves the woofer up and down. There is a small gap between the magnet and the voice coil and former that's called a magnetic gap. This gap is what helps the speaker to move up and down, and creates the Xmax. The Xmax of the woofer is the maximum linear excursion the woofer can travel without causing permanent damage. With a blown speaker, normally the voice coil and voice coil former have been pushed out of the correct magnetic gap, usually around the top of the magnet. That means that the only way to fix it is to take the woofer completely apart. My suggestion is to just go and spend the money. A blown speaker is a sign of abuse, and voids warranties from the majority of companies out there to include Kicker.

Sorry I do not believe that sub to be rebuildable. You can try running the sub with only 1 voice-coil but either way I think it is time for another sub unless it is a de-soldered tinsel lead (where you connect your wires to the sub).

is the rubber surround blown out.. look at voice coil itself .. it could be repaired but maybe not worth it. can u actuate the speaker down and up.. if you can then the voice coil is fused.. and if u can and u hear or feel resistance then there is work to be done to the voice coil and spider. Could be costly.. if its just the rubber.. use silicone to re-seal it.. ol skool trick..

Generally speaking if the voice coil is actually 'blown' (accepted too much power therefore reads as a short when connected to an ohmmeter) It would be cheaper to purchase a new sub woofer.

90% of the speaker manufacturing price is in the voice coil. The cage, driver and dustcap as well as the surround are inexpensive components.

I would suggest testing the voice coil with an ohmmeter first before you decide what to do. If the meter doesn't read a short then its likely a TV repair shop can reconnect the lead that attaches the terminal to the voice coil.

you will need to buy a recone motor kit for your sub

when a sub is blown it usually makes a scratcy or grinding noise if you push the sub in but if its blow it realy wont make much of a sound so it sounds like your voice coil is going out you will want to get this looked at quick or it can get expensive...i had one were it was cheaper to buy a new sub rather than fix it. it can also just be it disorting from too much power. i would never go over the power limit when dealing with 3000 watts, that can get realy expensive quick