Subwoofers are designed to make deep, low-frequency sounds that can’t be heard by the human ear. 

When you have a subwoofer that doesn’t sound as loud as it should, then there is an issue with either your amplifier or woofer. 

Do you have a subwoofer that doesn’t sound as loud as it should?

If you’re experiencing a weak sound from your subwoofer, then there is an issue that needs to be fixed.

In this article, we will discuss some of the most common reasons why a subwoofer might sound weak and how to fix them! You’ll learn about what can cause a weak-sounding woofer and how to get it back up and running again. 

Let’s dive right in! 

Most Common Issues:

Here we will go through some issues which are faced commonly by every user.

The First Issue: You Have A Faulty Amplifier

This usually happens when you purchase your first new car stereo system which includes built-in amps for each speaker. 

As soon as you turn on your music, you notice something isn’t right; only one side of the vehicle is getting loud while the other side sounds weak. 

This problem occurs because of a faulty amplifier which requires the person to install an aftermarket stereo system in order for both sides of their speakers to get equal power and sound equally as loud.

The Second Issue: The Subwoofer Is Not Installed Properly 

If you recently installed your subwoofers or moved them, then it’s possible that they are not placed correctly inside your trunk or boot space. 

Ideally, you want to make sure that there is nothing blocking any airflow coming from your vehicle’s heater vents; also try putting insulation around each woofer so they don’t move during high-level bass playbacks. 

You should be able to feel if either one becomes hot to the touch after a few hours of playing music.

The Third Issue: Your Subwoofer Needs To Be Replaced 

Over time, subwoofers can become damaged due to either heat or moisture exposure causing them to malfunction and sound weak.

If you are sure that your amplifier is working properly, then you should try replacing any subwoofer which sounds ‘tinny’ or has rattling noises coming from inside its enclosure.

Reasons why your Subwoofer Sounds Weak:

There are many reasons why your subwoofer may sound weak. Following are the reason behind your weak sound performing subwoofer: 

- Your amp is not powerful enough to produce the desired output. 

- The signal is being sent through too long a cable, which can cause noise and distortion. 

- Too much bass boost has been applied to the subwoofer, reducing its sensitivity and making it harder for it to reproduce low frequencies without help from an amplifier with more power or additional equalization filters. 

- There are other sounds in the room that mask low-frequency vibrations (e.g., noisy air conditioner). 

- You have moved your speakers away from each other so they no longer play in phase with each other, which reduces their efficiency as well as the bass response. 

- The subwoofer is not in the right place (e.g., near a wall).

- Your subwoofer is not isolated enough from the floor.

- Other factors, such as room acoustics can play a role in how your system reproduces low frequencies. 

How to know even your Subwoofer Sounds weak?

Overall, it’s important to have an understanding of what you are listening for when determining if your bass response ‘sounds’ right or wrong. 

To best determine this, be sure that all components are working properly and well maintained before beginning any set up process with your amplifier or equalizer settings.

You may also want to consider having an audio professional assist in setting things up correctly the first time around so you don’t need future adjustments after everything has been installed. 

Pro Tips to get your Sound issues Resolved:

Many people are not familiar with the overall setup process, so it may be best to have someone help you get started even if you feel confident in what needs to be done.

If your subwoofer sounds weak because of other factors such as room acoustics or noise sources that mask low frequencies, then adjusting settings on an amplifier and equalization filters might not fix these issues. 

There is no one-size-fits-all solution when trying to figure out why a subwoofer doesn’t sound strong enough. 

Different problems require different solutions that depend on the individual audio system at hand (e.g., home theater vs hi-fi stereo).

The same can be said for personal listening preferences. While some listeners may want more bass than others, all sound systems should be set up so that the subwoofer sounds as loud and forceful as possible without any distortion or clipping of its amplifier.

One way to determine if your system is producing a good quality low-frequency response is by testing for what we call ‘room gain’. 

What is Room Gain?

Room gain can be described as an increase in perceived volume (not actual physical output) resulting from reflected sound waves bouncing off walls and combining with direct forward-moving waves originating from speakers, thus strengthening overall bass presence within a room. 

The most effective approach for accurately measuring this effect is through the use of multi-subwoofers positioned on different surfaces throughout the room while playing familiar material at high volumes where you can clearly hear the bass. 

Let’s recap the most important reason you should know when your subwoofer sounds weak:

  • Low–frequency sound
  • Low bass woofer level
  • Wrong speaker settings
  • Poor acoustics in your room
  • Poor microphone configuration
  • Underpowered subwoofer
  • Incorrect amplifier size
  • Motor failure
  • Incorrect placement of polarized subwoofer

Final Thoughts:

There are many reasons why your subwoofer might sound weak, but the most important one to know is that it has low bass. 

This isn’t an issue just for home theater systems; even hi-fi stereo setups can have a problem with their subwoofers sounding too quiet or distorted if they’re not set up correctly. 

Once you have read the above information, you will find solutions to any challenges faced by your audio equipment, so you never have to worry about being frustrated by its performance ever again.

Steven Paul
Hi, I'm Steven Paul! I am dedicated to helping people learn more about subwoofers. My age is 49-year-old and passionate for helping others by doing detailed research, I really like working on because it gives me the opportunity to use my knowledge of research on Musical Guides. I have been researching about musical instruments for over 20 years and there is nothing that I love more than helping beginners get into the hobby of home theater audio. My goal with this site is to provide an unbiased resource where beginner's can come and find all the information they need to make educated decisions when shopping for their first subwoofer system.