Subwoofer Cuts Out When Driving (Why And How To Fix?) 

Subwoofers are a great way to improve the sound quality in your car, but when they start cutting out, it can be very frustrating.

This usually happens for one of two reasons: either the subwoofer is not getting enough power or there is something wrong with the wiring. In this article, we will explore both of these possibilities and show you how to fix them.

If your subwoofer is cutting out, the first thing you should do is check the wiring. Make sure that all of the connections are secure and that there is no corrosion on the terminals. If there is corrosion, use a wire brush to clean it off before making any connections.

If the problem persists after checking the wiring, then it is likely that you need to add an amplifier to your system.

A common issue with car audio systems is that your subwoofer cuts out randomly when you are driving.

This can be very frustrating, and there are many theories about what could be causing it.

It is essential to know the real reason why this happens before you begin troubleshooting because there may be multiple causes for this sound interruption.

We will go over them and how to fix them if that is the case. 

The sound system in our cars can make or break our drive time experience!

Audio sound systems these days have come a long way, but it’s still possible for something to go wrong with your system.

When this happens, there are things you can do to get back up and running again!

If your subwoofer continues to cut out after trying some of these simple fixes, then it’s likely time to take the system in for professional installation or replacement of parts.  

Top 3 Best Car Subwoofers Without Cuts Out

Why Does My Sub Cut Out When Driving

There are many reasons why car subwoofer cutting in and out, ranging from your car’s wiring to something as simple as the frequency of your music being too high.

Whatever the reason for this happening, it can be very hard on you and those riding with you.

Let’s go over some common issues that cause subs to stop working while driving and fix them. 

The Subwoofer Cuts Out When Driving Because Of The Bad Ground Wire Or Loose Connection

The first issue that people run into is a bad ground wire or loose/bad connection in general under their dashboards.

You want to make sure that all connections are good and tight so that the current is flowing correctly through the wires.

If there isn’t enough power going through these wires, they won’t turn on, and this will leave your subwoofer cut out.

You can make sure you have solid ground by checking for power (measure the voltage) at the wires and making sure that they are around 12 volts.

There are many other reasons you might run into this problem, such as bad wiring, broken wire, or even a bad amplifier.

If you run into this problem, there is a good chance that one of those parts needs to fix or replaced.

Also Read: What does clipping mean with subwoofers?

There Is A Problem With Your Car’s Electrical System, Or You Have Low Power

When you have a large subwoofer, it’s not uncommon to need an extra amp to power your speakers.

If you don’t have enough power going to the amp, it will likely create an overload and turn off your subwoofer.

That is why having enough energy in your amplifier is essential.

If you’re not getting a clean power supply from the head unit, then there’s a good chance that the amp will cause interference in this situation.

If your car isn’t running efficiently, the amp will have to work harder to keep your subwoofer running.

When you’re trying to power too many speakers, this can also cause problems, and your subwoofer will be one of the first to blow.

You May Need To Replace The Amplifier Or Get It Serviced

loose wiring in car that cuts out sound when driving

If you’re experiencing something other than one of these issues, then it’s probably time to get your amp checked out for possible repair or just replacement.

Most modern amplifiers and speakers can be used with any car making it easy to find a replacement.

Also Read: What does clipping mean with subwoofers?

Your Subs Could Be Too Loud For Your Vehicle And Needs To Be Adjusted

There is a possibility that your subs might be too loud for your vehicle, which could lead to them blowing out regularly.

If you’re not sure if this could be the problem, check when your subs are at their maximum limit when playing music.

Also Read: How To Tell If Subwoofer Is Blown

If they are playing music above 80% volume, it’s possible that they are just too loud for your vehicle.

If you have the ability to lower the maximum output of your subs, do so and see if this eliminates the problem.

If you want to make sure that your subs are not too loud, you can get a sound meter.

If the decibel (dB) levels are higher than the max value, then it’s time to make some adjustments to keep yourself and your passengers safe.

If you have a blown subwoofer, then it’s frequently because of the cone seal failure.

Cone Seal Failure

It is crucial that the surround (edge) of your speaker is maintained so that it can move freely.

If this surround begins to deteriorate, then the movement on the cone will be hindered, and this will cause it to overheat and blow.

How Do You Fix A Subwoofer That Is Cutting Out

  • Make sure the subwoofer is plugged in and turned on.
  • Turn up the bass volume of your receiver. 
  • Fix the ground connection and tighten the nut.
  • Check to see if there are any loose wires or cables (RCA cable) near the subwoofer.
  • Ensure the speaker wire is tight on the sub box
  • Try unplugging and replugging your speaker wire from your receiver to make sure it’s securely connected. 
  • Unplug all other speakers except for one, then plug them back in one at a time until you find which speaker is causing interference with the subwoofer 
  • If you’re still having trouble after checking these things, unable to find the actual issue contact an audio specialist who can diagnose the problem more thoroughly for you.

Why Does My Subwoofer Cut Out at High Volume?

There can be a few reasons why your subwoofer cuts out at high volume. One reason may be that your amplifier is not powerful enough to handle the load of both the speakers and the subwoofer.

When the amplifier is trying to power both the speakers and the subwoofer, it can overheat and cause the subwoofer to cut out.

Another reason your subwoofer may be cutting out is because of distortion. When a speaker is playing at a high volume, it can start to distort which will cause the subwoofer to cut out. This distortion is caused by the speaker trying to produce too much sound for its size.

The last reason your subwoofer may be cutting out is because of an impedance mismatch. An impedance mismatch can occur when you have two different types of speakers hooked up to your amplifier.

Amp Stays on but Subs Cut Out How to Fix?

If you’re using a subwoofer with your amp and the sound starts cutting in and out, there are a few possible solutions.

One is to check all of the connections between the subwoofer and the amp to make sure they’re tight. If they are, try turning up the volume on the subwoofer. If that doesn’t work, you may need to get a new amplifier.

Why Does My Subwoofer Cut in and Out?

When you’re listening to music, there’s nothing like the deep bass that a good subwoofer can produce.

However, if you’ve ever experienced your subwoofer cutting in and out, you know how frustrating it can be. Below are some of the most common reasons why your subwoofer might be acting up.

One possibility is that you have too many devices plugged into the same outlet. If there isn’t enough power available to run them all, the amplifier in your subwoofer will shut off to protect itself.

Another possibility is that your speakers are incorrectly wired or not positioned correctly. Improper wiring can cause interference, and if the speakers aren’t placed far enough away from each other or walls, the sound might be bouncing off of them instead of coming out properly.

Subwoofer Keeps Cutting Out?

If you’re experiencing problems with your subwoofer cutting out, there are a few things you can do to try and fix the issue.

One common problem is that the subwoofer is not getting enough power. You can test to see if this is the case by checking the wattage of your amplifier and making sure that it’s higher than the wattage of your subwoofer. If it’s not, you may need to upgrade your amplifier.

Another possibility is that the wiring in your system is not properly connected or is faulty. To check this, unplug all of the cables from your subwoofer and then plug them back in, making sure that they’re all in securely. If the problem persists, you may need to have someone check out your wiring for you.

Also Read: How To Connect A Subwoofer To RCA Cable


If you’re having trouble with your subwoofers cutting out while you’re driving, there may be a quick fix!

Check if your car is giving out enough power, and tighten the wires around the subwoofer.

If these things don’t work, then it may be an issue with your amplifier.

If this is the case, and none of these solutions works for you, there may be a more complex issue with your subwoofer.

Seek help from an audio specialist or contact the manufacturer to see how they can best fix this problem for you.

Also Read: How Much Does It Cost To Install A Subwoofer In Your Car

If you’ve done all the troubleshooting and still can’t figure out what’s wrong with it, we recommend replacing it as soon as possible for safety reasons.

We have a wide selection of subwoofers available on our site, so you should be able to find one that suits your needs perfectly!

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