Repairing Guides

how to repair voice coils in subwoofers

by Gertrude Cremin II Published 3 years ago Updated 2 years ago
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Steps To Repair The Blown Subwoofers:

  1. Assess the voice coil: First of all, see what your subwoofer looks like! Before you begin, you should examine the...
  2. Inspect the Speaker Cone Having checked the voice coil, you can now move onto the speaker cone’s next component. It...
  3. 3.Separate the speaker from its frame Depending on the results you obtained from assessing...

Full Answer

How do I replace the voice coil on my speaker?

Then take out the voice coil. You can do this by either cutting it or peeling it Straighten out the cone neck where the old voice coil was Take out the old dust cap by cutting it or dissolving it Then use the new layout and measure the new dimensions to help you install a new voice coil

How to repair a blown speaker?

Firstly, when you are ready to begin repairing the blown speaker, be sure to have the following tools on hand: Once those are accounted for, grab some putty knife or any other flat-edged tool and glue before proceeding with fixing it! First, a couple of checks should be done to diagnose why the speaker isn’t working. 1. Assess the voice coil:

Why do I need to fix my voice coil?

One of the reasons why it’s connected to other components means you’re going to have to fix those too. If you find that your voice coil is burnt (which you’ll know if you keep reading below), then you’ll also need to fix the braids and spider (we explain what a spider is later).

Why do subwoofers vibrate?

The back and forth causes the voice coil to act as an electromagnet. And the electromagnet works to bring the permanent magnet closer or farther. That’s why when you look at a subwoofer it looks like it’s vibrating back and forth. The coil is pushing and pulling the cone.

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Can voice coils be repaired?

It is sometimes possible to gain sufficient access to re-glue the voice coil. Use a slow drying or curing glue and ensure that this is placed between the coil and the cone. Apply evenly all round so that as it dries or cures it pulls evenly on the cone and keeps the coil in place in the centre.

How do I know if my subwoofer voice coil is blown?

0:142:46Car Audio : How to Tell if a Car Subwoofer Is Blown - YouTubeYouTubeStart of suggested clipEnd of suggested clipIf it won't move. Now if the subwoofer won't move at all when you push down on it then it'sMoreIf it won't move. Now if the subwoofer won't move at all when you push down on it then it's definitely bad it's frozen solid voice coils just frozen solid.

Can a subwoofer cone be repaired?

Sometimes it can be possible to obtain and fit replacement cones. If no other method is available one last ditch method to save and repair the loudspeaker that has worked well in the past uses a small patch. Most speaker cones are made of paper, and so a repair using some tissue paper works well.

How do you make a subwoofer voice coil?

0:173:57How to Make a Voice Coil in 3 minutes | UHD 4K - YouTubeYouTubeStart of suggested clipEnd of suggested clipFirst apply resin on the paper. It's a slow drying very hard resin. Now wind the copper wire on theMoreFirst apply resin on the paper. It's a slow drying very hard resin. Now wind the copper wire on the paper as shown in the video.

What does a blown voice coil sound like?

The most common aural indication of a blown speaker is an unpleasant buzzing or scratching sound, by itself or roughly at the pitch of the note the speaker is attempting to reproduce. Or there could be no sound at all.

Can a blown subwoofer be repaired?

Can you fix a blown subwoofer? Yes, you can fix a blown subwoofer especially when it is partially blown sub damaged cone. However, a damaged voice coil will be difficult to replace. Depending on the extent of the problem, the best solution is to purchase a new subwoofer.

How do you fix speaker cone damage?

0:072:05Repairing a Speaker Cone - YouTubeYouTubeStart of suggested clipEnd of suggested clipIt with with about one one to one ratio of water and so I'm just gonna mix. This out and then usingMoreIt with with about one one to one ratio of water and so I'm just gonna mix. This out and then using a paint brush just kind of repair it with the glue. And then let it sit to cure.

How do you fix a subwoofer cone?

0:562:46Repair Blown Subwoofer!!! (Spider Separated From Cone) - YouTubeYouTubeStart of suggested clipEnd of suggested clipOkay so once you have a sufficient amount of epoxy in there go ahead and push down on your cone likeMoreOkay so once you have a sufficient amount of epoxy in there go ahead and push down on your cone like this to get it to seat down in there real. Good.

How do you fix a cracked speaker cone?

5:0318:29How to repair a speaker with damaged paper cone and surroundYouTubeStart of suggested clipEnd of suggested clipWith something like this so you put the glue onto the tip of this and then go for example here weMoreWith something like this so you put the glue onto the tip of this and then go for example here we have the one of the problems. So i'll put glue over that slowly and spread it all around there.

How do you glue voice coils?

Epoxy stands heat and is the current standard. Preheat the voice coil slightly, apply a drop of epoxy with a toothpick, give it a whiff of hot air which will make it "more liquid" , spread it where needed and remove excess, both with a fingertip. Wash hands with warm water and regular soap. Let it cure overnight.

What's a better voice coil aluminum or copper?

the only real fact about aluminum is that it is much cheaper and has a much lower temp handling in the voice coils.

What is a voice coil made out of?

The voice coil component of a speaker is actually just an electromagnet. Electromagnets are coils of wire, and they're normally wrapped around some kind of magnetic metal, like iron.

How do I know if my sub amp is blown?

0:292:21How to Troubleshoot Dead Sub Amplifier | Car Audio - YouTubeYouTubeStart of suggested clipEnd of suggested clipYou can usually tell if it's blown because the piece in the middle is gonna be split apart if thisMoreYou can usually tell if it's blown because the piece in the middle is gonna be split apart if this fuse is blown it means either there's a problem back by the amplifier.

How do you know if a sub is broken?

After the subwoofer is properly broken in, you'll notice it plays deeper, with more dynamic range, and increased output. What's physically happening to the sub is the resins in the spider pack begin to break apart and soften.

How do you fix a blown subwoofer?

0:562:46Repair Blown Subwoofer!!! (Spider Separated From Cone) - YouTubeYouTubeStart of suggested clipEnd of suggested clipSo i'm gonna go ahead and mix up some five minute epoxy. And use this stick to kind of put it downMoreSo i'm gonna go ahead and mix up some five minute epoxy. And use this stick to kind of put it down in there as i push. Down on the little diaphragm. Here. And get it up around that area.

How do I know if my sub is blown with a multimeter?

0:533:22How to Test Subwoofer Impedance with Multimeter | Car Audio 101YouTubeStart of suggested clipEnd of suggested clipSo this will give you an idea of what each coil measures on the woofer impedance wise so if it's aMoreSo this will give you an idea of what each coil measures on the woofer impedance wise so if it's a dual coil which this MDX of ECW is a dual coil - dual 4-ohm coil. By that reading there are 3.7.

How does a voice coil work?

The coil is pushing and pulling the cone. When the cone starts pounding, then sound waves form turning the electrical signals into something audible. Now that you got a broad understanding of how a voice coil operates, let’s get more in-depth to make sure this sticks in your head.

What is a voice coil?

A voice coil produces sound pressure waves. It’s not often talked about as other components such as subwoofers or amplifiers but it’s just as vital.

WHAT AFFECTS THE VOICE COIL?

Part of understanding something is knowing how to manipulate information.

How to tell if voice coil is burnt?

If you smell the coil and it’s burnt. Easy. The 2nd tell is by touching the cone and you hear something crunchy. That “crunch” you hear is due to the burnt cone. The opposite of an ice cream cone.

How does sound pressure work?

Achieving sound pressure takes power no matter what. A current causes the coil to produce a field of magnetism which causes the wire to move. This, in turn, causes the coil to move. This is a very brief description of how a speaker operates in relation to a voice coil.

What is a corrector on a Toyota Camry?

Correctors are the adjustments on your stereo system. We have a member here on noisylabs who had a 2002 Toyota Camry and he would always play with the treble and bass.

Why does my amplifier clip?

One situation in which it causes problems is when the wattage power doubles or triples the loudspeaker. Having an amplifier go beyond its means causes what’s known as “clipping”.

Why Did Subwoofer Get Blown?

The reasons why subwoofer blow varies but can include factors such as too much volume or an amplifier clipping due to underpowering, or overpowering. Yes, underpowering can also result in damage to your subwoofer. It’s not uncommon to encounter a blown-up subwoofer. It can happen for many reasons, but thankfully does not render it obsolete!

Why does my subwoofer make a buzzing sound?

Subwoofers are designed to produce and tolerate low audio frequencies. A subwoofer’s voice coil may become separated from its voice cone when it is playingtoo loud music. Consequently, you will hear a buzzing sound coming from the subwoofer.

How to tell if a speaker is working?

If you need to know if a specific speaker is working, it’s possible by checking the voice coil with a multimeter. Connect your two speakers and use the meter on them – one end should be connected at both ends.

Can you check the voice coil on a speaker cone?

Having checked the voice coil, you can now move onto the speaker cone’s next component. It will be easy for you to assess this because it features a suspension system.

How to fix a voice coil?

First of all, cut the voice call by cutting the foam surround and the dust cover wires that are attached to the system. Hence, after removing the voice coil, clean the system as it is significant for smooth working. Here, use an air compressor or a vacuum to remove the extra dust or debris. Now, take a new voice coil and fix it inside ...

What is voice coil?

Voice coil is an important feature when it comes to the subwoofer and plays a vital role in amplifying the signals that are passing through your speaker. Here, to access this part of your speaker, you can use a method of a multimeter. For detection, connect the speaker terminals to the multimeter and check if there is any resistance.

How to check if subwoofer is damaged?

You can examine any damage in your subwoofer by checking the voice coil and the speaker cone. First of all, check the voice coil by using the multimeter method. In this instance, connect the terminal of the voice coil with the multimeter, if it doesn’t show resistance, your voice coil is damaged and needs replacement.

How long does it take for glue to dry on a speaker cone?

Let the glue dry for at least 24 hours for perfect sticking. You can similarly follow the process for the speaker cone and in the end, make sure to keep the parts in place.

What is passive subwoofer?

Here’s a guide on top powered subwoofers in the market. Passive Subwoofers are the elements that demand an external amplifier for power to establish a low-frequency bass for effective working and high audio quality. On the whole, both the elements work fine when it comes to efficiency and high-end music quality.

Why do you need a subwoofer?

Now, to make all this possible, you need your subwoofer to perfectly work with the speaker and serve you in the process of enjoying music.

How to tell if subwoofer is blown?

To indicate when your subwoofer is blown because of overpowering, try to notice a large buzzing sound in the music that is usually a sign of damage. Secondly, underpowering is a similar phenomenon that can make the subwoofer out of order by overheating it. This can tear the signals by jamming the voice coil that can damage the amplifier making ...

What Is A Subwoofer?

Subwoofers are components that produce a bass boost with low frequencies. This improves the quality and texture of the music. You can choose from different depths and diameters to enhance your audio quality, making it more useful for large venues. These elements are usually available in two types.

Why did the subwoofer blow?

What could have caused your subwoofer’s blow-up? If it is not under-or overpowered, your subwoofer could blow.

How to Fix a Blown Subwoofer

These tools are essential to your success in restoring your blown speakers.

Conclusion

A frustrating problem in a home theater system is a blown subwoofer. Fortunately, a blown subwoofer is a relatively easy fix that does not require an expert technician. We hope you find it helpful in our article. If you have any questions, feel free to contact us.

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