13 Tested Ways To Fix Muffled Sound From Speakers

Distorting sound from a speaker is one of the most worrying things for audio lovers. If there are issues, there are solutions.

We have 13 proven ways to fix the muffling sound of your speakers. Here are our favorite ways to fix this problem.

  • Upgrade The Firmware Of The Speaker
  • Change The Location Of The Speaker
  • Open The Speaker To Clean It
  • Check Out The Audio Settings
  • Check Out The Physical Damage


There are plenty of reasons due to which speakers produce distorted sounds. These reasons vary from system settings to wiring setups.

As you know we can’t find or discuss the exact solution to any problem until we find the root cause behind it.

So here are the most expected reasons why your speaker is producing suppressed or muffled sound.

Do The Correct Placement

The suitable placement of speakers is the most important and ignored factor.

If you have a free-air subwoofer or speaker and you keep it in a box or a confined space, it is a dumb practice.

You should place the speaker elevated to the floor (at ear level) and ensure that there is no obstacle in front of the speaker that is disturbing the sound.

Check Out The Default Equalizer Settings

Honestly speaking, the default audio setting of any device is the perfect one. Don’t try to change it if you are not an expert.

If you have recently played with the default settings, I highly recommend you reset it to the defaults.

Check Out The Wiring

Here I will talk about two types of wiring settings.

One is the connectivity. You should ensure that all the wires are connected well and these are working well.

Second, you have to confirm that you are using compatible wire sizes.

Check Out The Firmware Update

Advanced speakers are fully equipped with digital features and firmware support. Firmware might get outdated after a few times.

 You just need to install a Mobile App of your speakers company (like Pioneer or Bose etc.) and after logging in to the mobile app you can update the firmware of your speaker.

Regularly Clean Your Speaker

When the spider of a speaker vibrates due to loud sound, it attracts dust. Dust accumulates on the spider and causes heavy sound distortion.

You should clean your speaker regularly.


You can use a toothbrush or any soft cloth to clean it. The excessive use of water should be avoided, because it may cause electric mishaps.


If your speaker is producing a muffled sound, don’t panic.

It is a serious but common issue. Almost 70% of the speaker users definitely face this problem once in their lives.

Don’t worry I’m not here to make you depressed or worry about your beloved speaker but to give 13 proven ways to cure the muffling sound of your speaker.

1. Check Out The Physical Damage

You can’t expect a crunchy and clear sound from a damaged hardware.

There may be internal or external damage. First of all, unplug all the wires and then carefully check whether it is damaged from the outside or not.

Then open (unscrewed) it carefully and observe the internal environment. Ensure that all the wires are firmly connected and there is no internal damage.

If you feel something unusual, open the guidebook and try to fix it by seeing the wiring map.

2. Check Out The Audio Settings

Audio Setting for Speakers
Audio Setting for Speakers

All the newly launched speakers and other audio devices have fully customizable audio or equalizer settings.

Most noob people change these settings without any expertise. Due to this, the speaker produces unclear sound.

I am not saying that changing the equalizer settings is a bad thing. But you should be professional in it.

Please reset it to the default and now check the sound. I hope the sound is loud and clear now.

3. Open The Speaker To Clean It

Cleanliness is the only way to increase lifespan. Here I’m going to talk about two important tips. First, you should clean your speaker or subwoofer daily with a toothbrush or cotton, etc.

Second, after a week or ten days, open it and clean it deeply so there should be no dust traces. Specifically, clean the cone and spider of the speaker.

 4. Change The Location Of The Speaker

As I already told you, the correct location and position of a speaker plays a key role in the production of clear sound.

Never place your speaker on the floor because it will rattle while producing sound.

Don’t keep the speaker too away from the audience. Placing it beside the TV is a good option.

5. Upgrade The Firmware Of The Speaker

It is true that the firmware of a speaker gets outdated after a very long time. Therefore we usually forget to update it.

But I will recommend you install the mobile app of the respective company. It will notify you about the latest firmware update.

Regularly check it out and try to keep the firmware updated.

6. Change The Furniture Settings Of Your Room

Room Acoustics For Speakers
Room Acoustics For Speakers

I know this sounds awkward. But believe me, the acoustic properties of your room highly impacted the sound.

Sometimes the sound gets trapped or distorted by the sofa or any other furniture in the room. Therefore you should place the speaker where the sound can easily be scattered equally and undistorted.

Pro Tip

Keep changing the position and location of the speaker and arrangement of the furniture, until you find the best audio experience.

7. Check Out The Speaker’s Wiring

Connecting speaker wires is one of the most difficult and confusing parts of the installation. You should take the help of a guidebook or see the wire harness color codes to connect the wires carefully.

8. Check Out The Current Voltages

You can use the multimeter to measure the voltages of every wire. Ensure that every wire is working well and has accurate voltages.


The main power wire has more voltages than others.

9. Check Out The Audio Source

Your TV, Stereo, or Radio can be the audio sources. Sometimes there is fault in these sources instead of speakers.

Check out the audio settings of your audio sources and also ensure that they are firmly connected to the speaker.

10. Change The Audio Formats

This is not a big issue. However, some speakers don’t support a specific kind of audio format. Check that the audio file you are going to play is in the mp3 or WAV file type.

 If not, convert it via any online audio converter.

11. Change The Enclosure

If the box in which your speaker is placed is too tight to produce sound, immediately change it. The box should be large so the speaker can easily breathe in it and the sound doesn’t get distorted or produce an echo.

12. Check Out The AV Settings

External amplifiers act as signal enhancers for the speakers. Check out the equalizer settings of your AV amplifier and try to reset it to the default.

Plus Point

You should test your speaker by unplugging the amplifier. So it can be confirmed whether it is the issue of the amplifier or not.

13. Consult To A Professional

If you have tried all the above-mentioned techniques and the problem still persists, now it’s time to call an expert.

There may be some unseen issue in your speaker which you can’t see but a professional can easily manage it.


These 13 authentic ways to loud the muffled speaker are the most common and easy to apply.

There are strong chance that these ways will help you to solve this problem.

I will highly recommend you buy the speakers which have at least one year of warranty. So you can claim the warranty, whenever they become faulty.


How To Fix The Mobile And Laptop Speakers?

Restart your PC or mobile.
Upgrade the drivers or software.
Check out the physical health of the speakers.
Clean them with a cotton+ toothpick or a toothbrush.
Open your mobile or PC to examine the internal wiring and clean the inside dust.
Consult a professional.

How To Fix The Distorted Sound Of Car Speakers?

First, do the correct placement of speakers. It should be placed behind the seats or in the leg space.
The second issue is wiring. Ensure that all the wires are correctly plugged into the car stereo and battery.

How To Fix Muffled Speakers In Windows 10?

To fix the suppressed speaker in Windows 10, you should do these things. Reinstall or update the sound drivers.
Try to troubleshoot the audio problem manually. Check out or replace the sound card.
Install the window again.

How Can Bluetooth Muffled Speakers Make Loud?

Check out the Bluetooth connectivity.
Both devices should be close to each other.
Your speaker should support the latest Bluetooth version.
Bluetooth of all the other devices in that room should be turned OFF.