June 26

How to Fix Blown Car Speakers

Repair

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Jamming to your favorite playlist while behind the wheel of your car can make for an exciting road trip. However, blaring the audio system too loud with heavy bass may come at a cost. 

The thing is even the best car speakers in the market can blow!

If you notice that the audio coming from your car speaker system is a little bit off or there’s no audio at all when you turn on the music, you might be dealing with a blown speaker. 

Luckily, some of the issues that caused the speaker to blow are cheap to fix and can even be done without consulting a professional. Follow the guide below to know how to fix your blown car speakers!

What Causes a Car Speaker to Blow?

Before you start restoring your vehicle’s blown audio system, you must first understand the route course of the problem. Some of the main causes of a blown car speaker are as follows:

Thermal Failure

Thermal Failure  happens when your vehicle’s audio system is fed with too much power for the system. Typically, the speaker will overheat when the power is beyond the optimal level it can handle and this may end up melting the glue that holds together all the components. 

Aside from that, overheating can also burn wires inside the speaker and even melt the voice coil. This is a crucial part of the speaker that if damaged, could lead to bad sound or no sound at all.

Auto door interior trim lather

Mechanical Failure

This usually comes about when the cone of the speaker is displaced. The main cause for this displacement is the incorrect set up of the speakers. If the cone is not where it’s supposed to be, other components of the speaker can collide with each other or even the frame.

This collision can easily, tear, loosen, or even break some of these components, causing the speaker to sound abnormal!

Too Much Volume

If you turn the volume of the car audio system too high, you can end up causing serious damage to your car speakers. The vibrations as a result of the loud sound may cause the cone of the speaker to tear if the sound is too loud for an extended period of time. 

Low-Quality Equipment

 It’s not always your actions that lead to a blown car speaker. Sometimes, the audio system may simply be too old, and normal wear and tear over time may cause some components to break down. Nevertheless, this is more common among lower quality brands.

Fixing a Blown Car Speaker

If you suspect that your car speakers might be blown, use the guide below to fix  the problem:

Step 1: Inspect the Speakers 

The first thing you want to do is to confirm that the speakers are indeed the problem. In some cases, it would be obvious to tell that your speakers are not working normally. For instance, if you turn on the radio but there is no sound coming from the speaker, even at top volume.

However, this is not always so simple, some speakers will require more scrutiny before you can conclude that they are blown. As such, you want to play some music, preferably using a CD as opposed to the radio. Choose a CD that you’ve listened to multiple times so that it’s easier to pick out any unfamiliar sound. 

In case of anything unusual, shaking or rattling sound, turn up the volume to check if the situation worsens. If that’s the case, then there is a high chance that your speaker’s voice coil or cone is damaged. 

Step 2: Identify the Speaker that Needs Fixing

The next thing to do is to find out which speakers (right or left, front or rear) have a problem. You can do this by tweaking the fade and balance settings in the audio system to isolate the speakers and examine them more accurately. Make sure you get close to each speaker and listen carefully for any signs of "bad" sound.

If all the speakers have an issue, then you’ll have to restore them one after the other. If not, you only want to deal with the ones that have a problem. There is no need to dismount and dismantle all the speakers!

Person fixing the speakers

Step 3: Remove the Components

Once you have identified the troubled speaker, you want to remove and disassemble it into parts to know which components are damaged. In this case, you can consult the car’s manual for guidelines on how to remove the car speaker. Alternatively, you can use the guidelines we provide below.

First, use a screwdriver to unscrew the speaker from its opening in the car. Once you have dismounted it, carefully unplug the wiring harness connecting your speaker to the car without causing any damage. 

To get rid of the surround, get a sharp knife, and cut the foam slowly around the edge of the spider (the spider refers to the yellow piece that’s placed around the magnet). 

Remove the speaker cone slowly with a knife to expose the voice coil underneath. Disconnect every lead wire linking the voice coil to the terminal of the car before removing the coil. You can use a soldering iron with mild heat to do this. Finally, scrape off any remaining glue with a knife or sandpaper. 

Step 4: Clean the Speaker Components

You need to get rid of all the dust, dirt, and debris lodged within the speaker to see where the problem lies. You can use compressed air to blow out all the dust. Get a clean piece of cloth and alcohol to remove all the dirt and dried glue. Do this carefully while paying attention to all the components of the speaker so that everything is thoroughly cleaned. 

Step 5: Diagnose and Fix the Problem

With all parts of the speaker cleaned and laid out in the open, it will be easier to determine where the issue is. You first want to check the speaker cone to see if there are any cuts or tears. If you find any, use some tape or glue to seal the rupture and fix the speaker cone. (Note that you might have to get a new cone if the damage is too severe.)

The next component to check is the voice coil. Examine the coil to see whether it has melted. In this case, you’ll have to replace it with a new one. Luckily, this is a simple process that only requires you to replace the old coil with a new one in exactly the same spot and then plug in all the required wires.

Step 6: Reassemble the Speaker

Once you have fixed or replaced the spoiled speaker cone or voice coil, it’s now time to put everything back together. With the new voice coil in place and all the wires connected, mount the spider around it. Apply some wood glue around your new cone then place it over the voice coil, ensuring that it fits correctly. 

Apply a little bit of pressure on the speaker cone and let it sit for a while for the glue to dry. 

Audio speakers

Put some glue on the gasket before mounting the speaker. Don’t forget to place a dust cap over the new voice coil. Take the intact speaker and fit it back into its opening on the car and make sure that all the wires are connected as before.

Step 7: Test the Speaker

To make sure that the blown speaker is fixed and everything is working properly, you have to test the audio. Play some music on your audio system and listen to the speaker at low volume. 

Increase the volume gradually to see if there are any changes in sound quality. If everything is working properly, then your problem is fixed and you can go back to enjoying your favorite jams.

Mercedes interior

Step 8: Find a Mechanic

If you’ve followed all the above steps but the sound from your car speakers is still distorted, there might be a bigger underlying problem that is beyond your pay grade. In this case, you may have to look for an experienced technician to better diagnose the problem and provide the needed solution.

Just go to any car repair shop in your area and find an expert you can trust. Hopefully, it’s nothing big so that you don’t end up overspending on fixing the car speakers!

NB: It is always important to protect your car speakers. One way of doing this is to avoid turning the volume too high and regularly inspecting your car speakers.


Conclusion

If you enjoy listening to music while driving, a blown-out car speaker is the last thing you want to deal with. Luckily, this is a problem that can be fixed without necessarily going to the professionals. The article above provides you with a step-to-step guide on how to fix your car speakers.

However, we cannot guarantee that your speakers will be fixed when you follow this guide. If you’ve tried everything but nothing seems to work, you can always find an experienced technician to get the job done for you! 

About the author 

James Ruhle

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