How to Fix Blown Subwoofer

If you’re like me, then you love listening to music with good bass response. However, if you’ve ever had a subwoofer blow out on you, you know how frustrating that can be. In this blog post, we will show you how to fix blown subwoofer and get that bass response back in no time.

How to Fix Blown Subwoofer

We will also provide tips on choosing the right subwoofer for your needs. So, whether you’re a musician or just someone who loves listening to music with a powerful bass line, keep reading for tips on repairing a blown subwoofer.

Summary: When your subwoofer blows, there are a few things you can do to try and fix it. The first thing is to make sure that the power to the speaker is good. If you’re using an AC outlet, make sure the voltage is correct and that the plug is properly inserted. If you’re using a battery, make sure the battery is fully charged and that the connection is secure. Check for any debris in the connection. If all of those things check out, the next step is to check for damage to the woofer itself. If there’s visible damage, you’ll need to replace the woofer.

10 Easy Ways on How to Fix Blown Subwoofer

1. Check the Amp:

If your subwoofer stops working, one of the most common reasons is that the amplifier has blown. Be sure to check your amp for any signs of damage. If there are, you’ll need to replace the amp.

2. Check the Wiring:

Another common reason for a subwoofer to stop working is faulty wiring. First, check the wiring and make sure there are no cracks or exposed wires. If there are, you’ll need to repair or replace the wiring.

3. Check the Fuses:

The problem with the subwoofer may be that the fuses have blown. To fix this, first check the fuses to see if any of them are blown. If so, replace them with new fuses.

4. Check the Speaker:

If the subwoofer is still not working, the next thing you should check is the speaker. Make sure that the speaker is properly plugged into the amp and that it’s not damaged. If it is, replace the speaker with a new one. If you’ve checked all of these things and the subwoofer still isn’t working, there may be a problem with the amp. Try replacing the amp with a new one to see if that fixes the problem.

Speaker Is Properly Plugged Into the Amp

5. Test the Speaker Wire:

One other thing you can do to try and fix a blown subwoofer is to test the speaker wire. Disconnect the speaker wire from the subwoofer and touch the positive and negative terminals on the amp. If you hear a loud popping noise, then the speaker wire is likely the problem.

6. Adjust the Settings:

If you have a blown subwoofer, one thing you can try to do is adjust the settings. If the subwoofer is too loud, it will blow. Turn down the volume and see if that helps. If not, you may need to get a new subwoofer.

7. Use a Multimeter:

One other thing you can do to try and fix a blown subwoofer is to test the speaker wire. Disconnect the speaker wire from the subwoofer and touch the positive and negative terminals on the amp. If you hear a loud popping noise, then the speaker wire is likely the problem.

8. Check the Voice Coil:

The voice coil is what produces the sound from your subwoofer. If it is damaged, then your subwoofer will not produce any sound. Use a multimeter to test for continuity in the voice coil. If there is no continuity, then the voice coil is blown, and you will need to replace the subwoofer. If there is continuity, then the voice coil is not blown.

9. Check the Surround:

The surround is the part of the subwoofer that helps direct the sound. If damaged, it can tear and cause the subwoofer to sound distorted. You can usually tell if the surround is damaged if you see cracks or holes. Sometimes, all you need to do is replace the surround. Other times, you may need to replace the entire cone assembly.

10. Test the Speaker:

Once you’ve replaced or repaired any damaged parts, test the speaker to see if it’s working properly. Then, play some music or watch a movie and see if the sound is back to normal. If it is, then your subwoofer is fixed!

Play Some Music

Step by Step Procedure: How to Fix Blown Subwoofer

Step 1: Check the Voice Coil

The first step is to check the voice coil. The voice coil is the part of the speaker that creates the sound. If it is damaged, then the speaker will not work correctly. To check the voice coil, you will need to remove the speaker from the enclosure.

Step 2: Check for Damage

Once you have removed the speaker from the enclosure, you will need to inspect it for damage. If you see any cracks or breaks in the voice coil, the speaker is damaged and will need to be replaced.

Step 3: Replace the Voice Coil

If the voice coil is damaged, you will need to replace it. This can be done by removing the old voice coil and installing a new one. You will need to solder the new voice coil to the terminals on the speaker.

Step 4: Replace the Cone

If the cone is damaged, it will need to be replaced. This can be done by removing the screws from the back of the speaker and then pulling the cone off. The new cone can then be attached and the screws re-attached. Make sure that the cone is properly aligned before screwing it in place.

Step 5: Replace the Surround

If the surround is torn, you will need to replace it. You can purchase a replacement surround online or at a local electronics store. Be sure to get a surround that is the same size and shape as your original one.

To install the new surround, first remove the old one. Then, clean the surface of the speaker cone where the surround will be attached. Next, apply a thin adhesive layer to the speaker cone, being careful not to get any on the voice coil. Finally, place the new surround on the speaker cone, and press it into place. Allow the adhesive to dry for at least 24 hours before using the speaker.

Clean the Surface

Step 6: Test the Speaker

After you have replaced the voice coil, cone, and surround, you will need to test the speaker to ensure it works properly. First, reconnect the speaker to the enclosure. Then, turn on your amplifier and play some music through the speaker.

If the speaker sounds distorted or there is no sound at all, something is wrong, and you will need to troubleshoot the problem. On the other hand, if the speaker works properly, then congratulations! You have successfully repaired your blown subwoofer.

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Troubleshooting a Blown Subwoofer

A few things can cause a subwoofer to blow, the most common being incorrect wiring or overloading. If you suspect your subwoofer has blown, follow these steps to troubleshoot the problem.

1. Check the Wiring:

The first thing you’ll want to do is check all of the wirings to make sure they are all secure and connected properly. If any of the wires are loose, it could cause the subwoofer to blow.

2. Overloading:

Another common cause of a blown subwoofer is overloading. This happens when too much power is sent to the subwoofer, causing it to blow. Ensure you’re not sending too much power to the subwoofer to prevent this.

3. Bad Amp:

If the wiring and overloading are both ruled out as possible causes of the blown subwoofer, it’s likely that the amp is bad. In this case, you’ll need to replace the amp to fix the problem.

If you’re having trouble troubleshooting a blown subwoofer, or if you don’t know how to fix it, contact a professional audio technician for assistance. They will be able to help you figure out what’s wrong and how to fix it.

Some Helpful Tips and Suggestions

Here we have given some tips on how to fix blown subwoofer

1. Check your wiring. Make sure that the wires are securely attached to the subwoofer and the amplifier.

Check Your Wiring

2. Make sure that you have selected the correct input on your amplifier.

3. Make sure that the gain or sensitivity of your amplifier is not set too high. This can cause the amplifier to distort and the sound to be too loud.

4. If you are using a passive subwoofer, ensure that the crossover frequency is set correctly. This will ensure that the high and low frequencies are sent to the correct speakers.

5. Make sure that your subwoofer is in the correct phase. This can be done by reversing the speaker wires.

6. Make sure that the subwoofer is in the correct location. It should be placed in a corner or against a wall for the best sound quality.

7. Make sure that the subwoofer is not close to your TV or other electronic devices. This can cause interference and distort the sound.

8. Experiment with the settings on your amplifier to find the best sound quality

Frequently Asked Questions

What Causes Blown Subwoofer?

The most common reason for a blown subwoofer is overloading. This can be caused by too much bass, too many people talking in the room at the same time, or heavy instrumentation. Overloaded subs are unable to handle the extra pressure and may start to crack, leak fluid, or even explode.

To prevent this from happening, it is important to limit your bass frequencies and ensure that your subwoofers are properly equipped with enough power ( watts RMS ). Additionally, make sure there isn’t an excessive distortion of audio signals being sent into the woofer enclosure. If you notice any of these signs occurring on a regular basis, it’s recommended that you take your subwoofer offline for maintenance or replacement.

Is It Worth Repairing a Subwoofer?

as the value of a subwoofer will depend on a variety of factors, including the make and model, the condition, and the location. However, in general, repairing a subwoofer may not be a bad idea if it’s within the manufacturer’s warranty period and the repairs are deemed necessary by the manufacturer. Keep in mind that any repairs that are not within warranty may result in additional costs.

What Happens When a Subwoofer Blown?

When a subwoofer is blown, it can often result in Serious Injury or even death. Blown subs can cause serious damage to your home and the people inside of it if not properly addressed. Having an experienced technician come out and assess the situation is always recommended so that proper repairs can be made as soon as possible.

Oftentimes, when a subwoofer is blown, heat has caused materials within the speaker to expand significantly. This expansion may cause metal fatigue or structural failure within the speaker cone itself. In addition, high-frequency notes may become distorted due to the overuse of distortion settings on software amplifiers or speakers themselves.


Subwoofers are an important part of any sound system, but it can be difficult to know how to fix them when they go out. The most common causes of a blown subwoofer are overloading the amplifier or speaker with too much power, low-quality equipment, incorrect wiring, or water damage. 

There are several ways to test for these problems, including checking the impedance levels and measuring the output wattage. In this blog post, we’ve gone through how to fix blown subwoofer. We hope this information is helpful and leads you to a successful repair! If you have any questions or want to know more, then feel free to comment below!

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