Car Subwoofer Not Loud Enough – 9 Major Reasons

As technology is going to be more advanced day by day, people also want higher sound quality. Everybody (amateurs, fanciers, and professionals) put together the complex video and audio systems to be amused with the high-fidelity sound. In order to be perfect, all the audio-video configurations require a good subwoofer.

Sometimes, we observe that the subwoofer is not delivering high-quality sound. There can be several reasons why a car subwoofer not loud enough. Here, we will discuss the 9 most common reasons.

Even though a subwoofer may look big, it doesn’t mean it will always produce a big sound.

If you are listening to your favorite band and find that you can’t hear the bass clearly, you will not be happy. Don’t worry; generally, you will be able to fix the malfunction easily. However, if you are unable to find any explanation for the low or inaudible sound, it means that the subwoofer sounds weak and needs a proper diagnosis.

Loudspeaker Understanding

You may want to know what the subwoofer is. A loudspeaker made to reproduce low-pitched audio frequencies (20 to 200 Hz) is called a subwoofer. It comes with one or multiple woofers assembled in the loudspeaker box.

A subwoofer is an audio configuration with an optimal function that generally depends on other elements of your audio system, like amplifiers, speaker drivers, etc. The reasons for the weak sound of the subwoofer may be hidden in this system’s each component.

Reasons for a Car Subwoofer Not Loud Enough

We will discuss the 9 most common reasons your car subwoofer may sound weak.

Minimum Low – Frequency Sound

Several immature users want to hear the bass all the time and become disappointed when they can’t. Remember that the subwoofers reproduce the sounds with only low frequency, like the movie explosions, bass guitar, drums, etc.

The subwoofer will remain silent if any low-frequency sound is not present. No need to worry; you must ensure you play media containing low-frequency sounds.

Lowered Bass Woofer Level

Another reason is that you have not perfectly adjusted the bass woofer volume. You must ensure that you have checked the level. If it is low to a minimum, increase it to the desired volume.

Several users don’t take care of the bass level because it is adjusted separately apart from the other speakers. The soundbar remotes of most of the models come with a separate button (named woofer) to change the bass sound. If there is no such button on your remote, you must check your user manual.

Wrong Speakers Setting

As we know that the subwoofer (the woofer’s system) works perfectly in the audio configuration, you will have to synchronize all the configuration elements to achieve it.

The full-range speakers and the subwoofers deliver multiple types of low frequencies. Therefore, it is very important to set up the speakers perfectly before you use the audio system. The subwoofer frequency setting must match the main speaker’s frequency settings.

Poor Room Acoustics

Audio-video experts point out that room acoustics are paramount for all audio-video systems.

It’s also clear to professionals that many home-built studios have standing-wave problems that even the best subwoofers can’t eliminate.

Subwoofer can be weak due to poor acoustics. So make sure the room acoustics are good before blaming the sub for soft sound.

Poor Sources Configuration

The sound source may misbehave when a subwoofer is used in a studio or other setting. Just check the audio configuration to see if the problem is caused by the microphones, other program sources, or the sub itself.

Connect the subwoofer to another source, such as an iPod. If there are no sound issues, you’ll need to check the source setup for anything unusual.

Under-powered Subwoofer

Generally speaking, under-powering a subwoofer is not necessarily dangerous. However, providing less power to the subwoofer will result in weaker sound.

Moreover, you should also be careful not to power up the overworked amplifier with the subwoofer. If the amplifier is overworked, it will send a clipped signal which can cause serious damage to the subwoofer.

Incorrect Amplifier Size

If the subwoofer doesn’t sound bad at low volume, but the sound becomes weak when you turn up the volume, the following may be why your amplifier is too small for your system, and you should replace it with a more suitable amplifier.

The size of the audio system will determine whether you need one amplifier or more. For the best configuration, there should be one amplifier channel per subwoofer.

Motor Failure

If the subwoofer’s sound is weak, a more serious problem could be a motor malfunction. Once you have confirmed that any of the above does not cause the weak sound, confirm that the motor is working properly.

A blown battery or fuse can cause the motor to malfunction. Such malfunctions can also affect sound quality.

A Mis-polarized Subwoofer In An Array

If subwoofers are to function in a sound system, they necessarily have the proper polarity respective to each other. Otherwise, the sound pressure level (SPL) will be decreased. An inadequate SPL will weaken the sound of all subwoofers. Therefore, the first thing a professional needs to do after installing a sound system is to check the polarity of all loudspeakers.

Bottom Line

A subwoofer, which is well-made and appropriately used, will be a valuable and useful purchase not only for your car but also for the home and studio, etc. Amateurs and professionals can both use the subwoofers. It satisfies its users.

However, you have to ensure that you are well familiar with using the subwoofer appropriately or carefully read the manual. If you don’t configure the subwoofers appropriately, they will have a short lifespan and reproduce low-quality sound. In case you feel that your car subwoofer not loud enough, you must check if there are any of the above-discussed reasons. If so, you have to fix the issue yourself or ask any technician.

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