car subwoofer making noise when turned on

car subwoofer making noise when turned on

Today we discuss car subwoofer making noise when turned on. As a passionate driver who appreciates good tunes, you understand the significance of a reliable audio setup on the road. Any audiophile worth their salt knows that a high-quality subwoofer is paramount to achieving that deep, pulsing beat that makes your music come to life. Regrettably, if you’ve detected any unusual sounds emanating from your car subwoofer, it is imperative to investigate the issue to identify its root cause.

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8 causes of car subwoofer making noise when turned on:

1. Check the wiring connections first:

If you are experiencing the issue of your car subwoofer making noise when turned on, there could be several reasons for it. It is important to identify the root cause of the problem so that it can be fixed effectively. One of the first things you should check is the wiring connections of the subwoofer.

Loose or faulty wiring connections can cause the subwoofer to make unwanted noise. Make sure that the wiring connections are properly secured and connected to the right terminals. If there are any frayed wires, exposed wires, or damaged cables, replace them immediately.

Checking the wiring connections first is a simple and easy step that can help resolve the issue with your car subwoofer making noise when turned on.

2. Inspect the subwoofer cone:

If your car subwoofer emits strange noises upon activation, there are several potential causes. One likely culprit is a damaged subwoofer cone.

To investigate, you must extract the subwoofer from its enclosure and inspect the cone thoroughly for any telltale signs of harm, like cracks or rips.

Should you find any damage, it’s advisable to replace the subwoofer cone to prevent additional harm and ensure the utmost audio quality.

Please bear in mind that this procedure can be complicated, so it’s best to call upon a car audio technician for professional assistance.

3. Verify the amplifier settings:

If you’re experiencing the unpleasant sound of a noisy car subwoofer, it’s likely due to incorrect amplifier settings. The amplifier settings can greatly impact the output of the subwoofer and cause unwanted noise.

To address this issue, you’ll need to take a few steps. Begin by ensuring that the amplifier is set to the correct gain level, which can be done by referring to the manufacturer’s instructions or by using a multimeter to measure the voltage output. Next, check the crossover settings to ensure they’re set to the appropriate frequency range for your subwoofer.

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Lastly, adjust the equalizer settings to ensure that the subwoofer isn’t being overdriven or underpowered. By verifying these settings, you can ultimately eliminate the noise issue and enjoy a clear and powerful sound from your car subwoofer.

4. Ensure the subwoofer box is secure:

If you’re facing the issue of a noisy car subwoofer upon activation, it’s possible that the root cause could be an improperly fastened subwoofer box. The box may not be securely attached to your car’s frame or floor, resulting in rattling and unwanted vibrations that disrupt the audio quality.

To resolve this, meticulously examine the screws or bolts holding the subwoofer box to your vehicle, ensuring they are firmly tightened and not damaged.

Besides, check for any loose wiring or connections that could be contributing to the noise. By securing the subwoofer box, you can eliminate unwanted noise and enhance the overall audio experience in your car.

5. Check the voice coil:

If your car’s subwoofer is acting up and producing an unpleasant noise, there may be several factors causing the issue. It is often observed that a faulty voice coil is the leading cause of noise in subwoofers. The voice coil plays a crucial role in converting electrical signals into mechanical motion, producing sounds that we all love to hear.

Unfortunately, with time, the voice coil might get damaged or misaligned, leading to distorted or buzzing noises from the subwoofer. To identify if the voice coil is the problem, gently push down the subwoofer cone while it is off.

You’ll know the voice coil is damaged if you feel any resistance or hear scraping sounds. It is important to address any issues with the voice coil as soon as possible to prevent further damage to your subwoofer and ensure an optimal sound experience.

Car Subwoofer for Home Theater

6. Make sure the power source is adequate:

If you’re noticing strange noises emanating from your car’s subwoofer, it’s wise to investigate the power source. A subwoofer needs a considerable amount of power to function correctly, so if your battery and alternator aren’t providing enough juice, you’ll likely encounter issues.

Check that the wiring between your battery, amplifier, and subwoofer is robust and secure. Thin wiring can cause voltage drops, which can negatively affect the subwoofer’s performance.

besides, ensure that the amplifier is receiving sufficient power and that the gain settings are appropriately adjusted to prevent overdriving, which can result in distortion and noise.

By verifying that your power source is adequate, you’ll eliminate one possible explanation for your subwoofer’s noisy behavior.

7. Look for signs of damage:

If your car subwoofer is making a strange noise when turned on, it could be a sign of damage. One of the first things you should do is look for signs of physical damage, such as cracks or tears in the subwoofer cone or surround. If you notice any damage, it’s important to replace the damaged parts before continuing to use the subwoofer.

besides, check the wiring connections to ensure they are secure and not loose or damaged. Loose or damaged wiring can cause the subwoofer to make strange noises or not work at all. It’s also a good idea to inspect the amplifier and other components for any signs of damage or wear and tear. If you’re unsure about what to look for, it may be best to take your car subwoofer to a professional for inspection and repair.

8. Consult with a professional installer:

If you’re experiencing unusual noise from your car’s subwoofer when you switch it on, there could be several factors contributing to the problem. One possible cause is improper installation of the subwoofer.

In such situations, it’s highly advisable to engage the services of a professional installer who specializes in car audio components.

Their skills and expertise can help diagnose the issue and offer effective remedies. It’s critical to choose an experienced installer with a solid reputation within the industry to ensure the proper fitting of your car subwoofer.

By seeking the guidance of a specialist, you can avoid further damage to your car’s audio system and relish high-quality sound without any unwanted disruptions.


a car subwoofer making noise when turned on can be due to various reasons, including loose connections, damaged wires, or a faulty amplifier. It is essential to identify the root cause of the issue to avoid further damage and ensure optimal sound quality. Regular maintenance and inspection of the subwoofer can help prevent such problems from arising. Besides, seeking professional help from a car audio technician can provide a comprehensive solution to any subwoofer-related issues. Remember, a well-functioning subwoofer adds an extra dimension to your music and enhances your overall driving experience.

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