Why Does My Subwoofer Sound Weak? Top Full Guide 2023

Why Does My Subwoofer Sound Weak Top Full Guide 2023
  • Anthony

There are a few possible reasons why does my subwoofer sound weak. It could be that the subwoofer is not properly powered or that the settings on the subwoofer are not properly adjusted.

Additionally, the size of the room where the subwoofer is located can also affect how loud it sounds. If you have any concerns about why your subwoofer sounds weak, it is best to consult an expert to get the most accurate diagnosis.

Loudspeaker Understood

Loudspeaker Understood

A subwoofer is a loudspeaker intended to reproduce low-pitched audio frequencies between 20 and 200 Hz for consumer goods. It consists of one or more woofers housed in a sturdy loudspeaker box.

The subwoofer is an audio design whose proper operation is typically dependent on the other components of your audio system, such as the speaker drivers and amplifier. The source of your subwoofer’s poor performance might be found in any component of this system.

Reasons for Why Does My Subwoofer Sound Weak?

Reasons for Why Does My Subwoofer Sound Weak

The following is a sample list of 9 probable reasons why your subwoofer may have weak sound, starting with the most basic.

  • Low–frequency sound at a minimum
  • Incorrect speaker settings lowered bass woofer level
  • Poor acoustics in the room
  • Inadequate microphone or program source setup
  • Subwoofer with insufficient power
  • Inadequate amplifier size
  • Failure of a motor
  • An array with an erroneously polarized subwoofer

Now let’s take a deeper dive into each of these.

Minimum Low–Frequency Sound

Many novice users anticipate hearing bass all of the time and are surprised when they do not. Remember that the sub reproduces only low-frequency noises in movies, such as bass guitar, drumming, or explosions.

The sub will stay quiet if such low-frequency noises are not present. Before worrying, make sure you listen to music with low-frequency noises like rumbles or powerful bass. Only after that should you look into other probable causes.

Lowered Bass Woofer Level

Another possibility is that your bass woofer level is not properly set. You must verify the level and, if it has been reduced to a minimum, adjust it to your preferred volume.

Many users disregard the bass level since it may be adjusted independently of the other speakers.

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Most soundbar remotes contain a separate woofer button for altering the bass sound. See the user manual if your remote does sound come out of a subwoofer.

Incorrect Speakers Setting

As previously said, a subwoofer is a woofer system that performs optimally in an audio arrangement. To do this, all configuration components must be synced.

The subwoofer and the full-range speakers produce different sorts of low frequencies. As a result, it is vital to have your main speakers properly configured before utilizing your audio system.

Your subwoofer’s frequency settings should correspond to those of your primary speakers.

Poor Room Acoustics

According to audio-video experts, room acoustics are important for any audio-video system.

Professionals also point out that most home studios have horrible standing-wave difficulties that even the greatest subwoofers cannot solve.

Poor acoustics might distort the sound of your subwoofer. So, before blaming your sub for the quiet sound, ensure your space has adequate acoustics.

Poor Sources Configuration

For example, sound sources may sometimes fail when employing subwoofers in a studio. All you need to do is examine your microphone or other program sources in your audio settings to see if they are the source of the issue or the sub itself.

Connect your subwoofer to another source, such as an iPod. If the sound is fine, you should seek a problem with your source’s setup.

Underpowered Subwoofer

Underpowered Subwoofer

Underpowering your subwoofer is not always harmful to it. However, not providing your sub enough power will result in a poor sound.

You must also be cautious not to overload the amplifier while powering up the sub. Overworked amplifiers produce clipped signals, which may severely harm your subwoofer.

Incorrect Amplifier Size

If your subwoofer sounds nice at low playback levels but degrades as you increase the volume, it may only indicate one thing. Your amplifier is too tiny for your system and should be replaced with a bigger, more capable one.

Depending on the size of your audio system, you may need more than one amplifier. One amplifier channel for each subwoofer is the ideal option.

Motor Failure

A motor malfunction might be the cause of your subwoofer’s lackluster sound. Once you’ve determined that none of the following cause the feeble sound, check to see whether the motor is still working properly.

The battery or fuse may fail, causing problems with the motor. The sound quality would suffer as a result of such a flaw.

A Mis-polarized Subwoofer In An Array

Subwoofers in a sound system must have the right polarity relative to each other. The sound pressure level will be reduced (SPL) if they do not. Inadequate SPL will reduce the volume of all subwoofers. That is why, after installing a sound system, one of the first things specialists do is polarity test all loudspeakers.

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How Does A Car Subwoofer Work?

How Does A Car Subwoofer Work

A subwoofer may produce low frequencies ranging from 20 to 200 Hz (hertz), which most ordinary speakers do not produce.

These low-frequency vibrations are inaudible because they shake the air so violently that they vibrate the speaker. An automobile subwoofer is intended to manage vibrations that conventional speakers cannot, owing to their smaller size.

The frequency response of a typical full-range speaker ranges from 50 Hz to 20 kHz. Subwoofers with a response as low as 24 Hz are available, while the largest ones may go as low as 20 Hz.

Even at high levels, a decent subwoofer will provide deep bass tones, enabling you to feel and hear bass notes in music songs.

The cone, voice coil, spider, and dust cap are the four primary components of a subwoofer. The cone, constructed of paper or plastic, is in charge of creating sound waves.

A subwoofer’s loudness is measured in decibels (dB)—the louder the sound, the greater the decibel level. A standard automotive audio system may generate up to 100 decibels of loudness, which is equivalent to or even greater than the level produced by certain home stereos.

How to Make Your Subwoofer Hit Harder

Here’s what you can do to increase the power of your subwoofer:

  • Check that you’re using the right amplifier for your vehicle audio subwoofer. Amplifiers have varying power outputs; you must choose one that suits your subwoofer. With the right amplifier, your subwoofer will strike harder.
  • Purchase a bandpass box. Bandpass boxes are used to boost the subwoofer output. They are incompatible with all subwoofers, so do your homework before purchasing one. Your subwoofer’s user manual will likely inform you whether it is compatible with a bandpass box.
  • Adjust the settings on your amplifier and stereo. Changing these parameters will enhance the overall sound quality. You may be able to make your subwoofer hit louder if you find the proper settings.
  • Please make sure the issue is with the subwoofer itself before attempting to adjust the settings or purchasing bandpass boxes.
  • Play music that contains low-frequency sounds, such as pounding noises or bass guitars. Pay close attention and feel the woofer.
  • If you can feel the vibrations of low-frequency sounds, your subwoofer is operating properly. Because of the acoustics or the amplifier, it may not be striking forcefully enough.

How to Tell When a Subwoofer Is Bad

How to Tell When a Subwoofer Is Bad

It might be difficult to detect whether a subwoofer is defective when purchasing it or even after you begin using it. Apart from the deterioration in sound quality, it would help if you also considered several other factors while purchasing this equipment.

For example, ensure that the subwoofer is composed of solid and lasting materials and has a decent warranty policy. Before purchasing a subwoofer, inspect it from all angles and request a test run.

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If you detect any problems with the subwoofer’s components, such as the cone or the coil, once you start using it, this might suggest damage. Also, avoid spilling or dropping anything on your subwoofer.

If you discover any damage using these methods, you should attempt to fix it yourself or contact a professional.

How to Make the Subwoofer Sound Better

How to Make the Subwoofer Sound Better

How can you improve your subwoofer’s sound now that you’ve identified the reasons for its poor performance? Let’s look at some options.

  • Do not overpower your subwoofer or depend too much on other components to compensate for its poor sound. Check that all components’ volume levels are compatible with the subwoofer.
  • You may improve the sound quality of your subwoofer by purchasing a high-grade gadget or purifier. You may also employ phase shifters to reduce other unneeded noises.
  • You should attempt to resolve the problem as quickly as possible, either on your own (if you are talented and confident enough) or by contacting a professional. You may need to replace components, repair wiring, or replace the whole subwoofer.

Some relevant posts:


Why is my sub not as loud as it should be?

Another possibility is that your bass woofer level is not properly set. You must verify the level and, if it has been reduced to a minimum, adjust it to your preferred volume. Many users disregard the bass level since it may be adjusted independently of the other speakers.

How can I make my bass subwoofer louder?

Change the placement of the subwoofer in the room. As a general rule, avoid putting the subwoofer in the same space as two walls. The asymmetrical positioning of the subwoofer relative to room limits results in stronger bass output and the smoothest overall response.

Why are my subs not hitting hard anymore?

If you are certain that the subwoofer is faulty, go to the amplifier. The most frequent cause of subwoofers sounding weak has the improper amplifier size. Next, verify the subwoofer volume in the speaker settings, as well as the frequency of the subwoofer.

Why do subs hit harder with windows down?

The fact that the windows being up or down influences the subwoofer’s output is due to the vehicle’s cabin acting as a chamber for the speaker, just as the speaker enclosure does.


There are a few possible reasons why your subwoofer might sound weak. One possibility is that the subwoofer is not properly connected to the amplifier. Another possibility is that the subwoofer itself is defective. Finally, the gain setting on the amplifier may be set too low. Thanks for reading.

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