How to Fix Subwoofer Popping Noise [Troubleshoot Guide]

A subwoofer is an integral part of any home or professional sound system. As important as it is in a good sound system, small problems can be quite frustrating. Especially a popping sound can be quite intimidating in terms of its safety.

So, why does the subwoofer makes popping noise when turned off?

Auto-on settings can be a reason for this issue because of overheating. Wireless interference is very common in homes with many signal-emitting devices.  A faulty amp can also lead to your subwoofer making a popping sound. Again, faulty cables or loose connections can be a culprit too. 

Confused? Don’t worry! We’ve got your back. Here we have a complete troubleshoot guide explaining each problem.

So without further ado, let’s get started!

Why Does My Subwoofer Make Popping Noise When Turned Off

There can be numerous reasons creating this issue of popping noise. Below I’ve listed the ones I have explained further.

  1. Problem because of the auto-on settings.
  2. Wireless subwoofer Interference.
  3. Problematic audio inputs.
  4. Faulty subwoofer amps.
  5. Faulty RV receiver.
  6. Underpowering subwoofer.
  7. Faulty cables.

Source: boomspeaker.com

All these reasons can contribute to the popping noise when you turn off your sub. So to understand further keep reading the explained guide on these problems.

Troubleshooting Steps

You may be wondering what does it mean when your subwoofer makes a popping noise? Well, there are quite a few reasons for your subwoofer to make a popping sound. A lot of methods can also solve this problem.

So let’s go through them one by one.

Step 1: Auto-On Settings

If your subwoofer has an auto-on feature, you may need to disable it. It’s a basic solution that has worked for a lot of people. The power mode must be changed from auto-on to simply-on or always-on.

When the input signal is detected, the auto no function switches on the subwoofer automatically. So it reduces the electricity consumption. As a result, the internal temperature also decreases.

But there can be issues with the internal circuits that may result in the popping sound. The feature auto-on can lead to overheating that further leads to the popping sound. So disabling that might solve the speaker popping noise when turned off.

Step 2: Wireless Subwoofer Interference Problem

In case your subwoofer is wireless then subwoofer interference can be an issue. It can lead to the subwoofer not working properly. There can be signal interferences of other devices in your home. Remember that a lot of devices in your home have their signals.

These signals can cause issues for your wireless subwoofer. Also, the subwoofer clicking sound is another issue that wireless interference may cause.

Especially the smart devices of your home can interfere with the signal of your wireless sub. A direct connection between your sub and receiver is required. Connect these two with an RCA cable or a subwoofer cable.

This can solve the problem of popping if wireless interference was the issue. Otherwise, if you need to keep the subwoofer wireless then try other ways. Like, such as moving the subwoofer until the popping sound is gone. If moving your subwoofer is not viable for you then try moving your other wireless devices.

Especially Wifi routers or other smart devices emitting wireless signals. Try changing their location in the home. You can also try using wifi shields. Make a barrier between other devices with the wireless signal and your subwoofer. This will prevent wireless interference. You can also try wrapping foil paper around it to keep the signals away.

If the problem persists then your subwoofer transmitter can also be defective.

Check out some of the best wireless subwoofers in the market for a quality listening experience:

These subwoofers have highly integrated interfaces. So you won’t have to worry about facing any problems with them.

Step 3: Changing Audio Inputs

This is perhaps the most frequent of all the reasons. Every time you change audio input, pop can be heard via your subwoofer. An AV receiver should muffle all pre-out jacks after altering the audio input. But just for a short while. If it doesn’t, it’s likely due to a malfunctioning diode and/or circuitry.

Firstly, lower the bass level of your sub. This is solely for reducing the volume of the popping sound. Then you can manually configure the input signal individually. To the audio signal, it will receive, rather than utilizing the auto-detect selection. It will be determined by the sort of AV receiver you have.

After you’ve finished with the manual setup, run a test to determine if the issue still exists. If it does, you should consider sending your AVR to the manufacturer’s service center. This will act as a comprehensive examination by a certified expert.

Source: lifewire.com

Step 4: Faulty Subwoofer Amp

This approach can be used to pinpoint the problem if you don’t have a spare sub. Plug your subwoofer using a working RCA connection. Reduce the level of your subwoofer output first.

Then put something on your DVD player and gradually increase the level of the subwoofer amp. Keep increasing until you can hear music. It’s the subwoofer amplifier that’s at issue if you hear a popping sound again. In this situation, you’ll have to send the subwoofer in for repair.

It’s a clever idea, but it has a caveat too. We can only figure out if the problem is caused by the subwoofer amplifier.

Step 5: Faulty AV Receiver

There is a chance for your receiver or amp to send dirty signals to your subwoofer. By connecting another source you can determine whether it’s the problem. Any other source directly to the subwoofer can help you detect the problem.

Don’t have a spare woofer? Don’t worry! You could try changing the present AV receiver with the spare one. Run a test to see if the AVR is creating the pop sound from the subwoofer.

If the problem still doesn’t go away then there might be other problems.

All of the aforementioned troubleshooting approaches point to your subwoofer as the source of the problem. You might want to read the rest of the article. Because I’ll explain the numerous conditions that cause your sub to create popping sounds. Also, I’ll explain what you can do about it.

Step 6: Underpowering Subwoofer 

Typically underpowering a sub isn’t a problem. But the problem begins when it’s connected to an amp. The amp has to overwork in order to compensate for the lack of power.

Also, the speaker popping noise when turned on may also be caused by this problem. This can lead to the popping sound in many cases. Be careful about keeping your subwoofer low pass filter switched.

An example of this is very frequently seen in cars. It’s when the subwoofer makes noise when I accelerate. This is when the woofer isn’t getting enough power because of the acceleration.

So check if you’re powering your woofer with the necessary amount. Check if the power outage of the subwoofer matches the amps. If it doesn’t, you’ll have to put in some effort.

Getting a voltage stabilizer, such as a condenser, is an excellent answer.

Step 7: Faulty Cables

As we know, a popping sound is always an outcome of interruptions in the electrical connection. So worn out or broken cables can create this issue because of interruptions in the connection.

Source: heolospeakers.com

Replace the cables and check if the problem goes away. Check for damages to the wires. Also, check for loose connections. Because faulty connectivity could be the source of the issue. It can also lead to various reasons behind the subwoofer not working with pc.

Sometimes fixing a loose connection can solve the problem of popping. If any cable is worn out or broken, however, it should be replaced.

FAQs

Why Is My Subwoofer Making a Popping Sound?

The subwoofer makes a popping sound because of squared waveforms, improper cone signals, or overpowered settings. The deformed noises reflect a mismatch between the input and output, depending on the speaker’s specs. Popping noises might also be caused by loose wiring.

Can the Popping Sound Blow My Subwoofer?

Yes, the popping sound can be dangerous enough to blow your subwoofer. Typically it can be harmless but in prolonged usage, it can be dangerous. It can lead to a burnt-out coil because of overheating. Especially when it’s connected to an amp, it’s more dangerous.

How Do You Know If You Blew Your Subwoofer?

Subwoofers can be blown if they are given too much voltage or a malformed signal. Listen to the sound. Then use a multimeter to see if the coils are blown to determine if your subwoofer is blown. You have a partially blown subwoofer if it is distorted.  And a completely blown subwoofer if there is no sound at all.

Conclusion

That will be a wrap for today. Hopefully, you were able to figure out why the subwoofer makes popping noise when turned off. 

Make sure to prioritize your safety while troubleshooting. Electricity can be very dangerous.

Good luck and see you at the next one!

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