How to Fix Subwoofer With No Sound-Quick Steps

A subwoofer is a type of speaker modified to reproduce the lowest sound frequencies. Subwoofers are approximated to reproduce sounds ranging from 20hertz to 200 hertz. They entail a cone-like in the case with most speakers. The cones diameter ranges from 8 inches to 21 inches.

They move a lot of air, thus reproducing low frequencies. They do these by moving the speaker cone back and forth. Many issues can prevent the subwoofer from reproducing these frequencies or sound. Some of the problems include cone seal failure, divert magnitude failure, lack of power and even short circuit. However, the problem can be fixed, as outlined in this article;

How to fix a subwoofer with no soundhow to fix a subwoofer with no sound

Sometimes one may have his or her subwoofer play with no sound and maybe think that the subwoofer is damaged. However, if you ever experience this, never get worried. There are innumerable ways to fix a subwoofer with no sound.

Here are some tips on how to fix your subwoofer:Here are some tips on how to fix your subwoofer:

  • Confirm whether the subwoofer is enabled in the speaker pattern setting. You can do this by using the remote control to press the setting, select speaker, then select the speaker setting. It is always advisable to keep in mind that the speaker pattern should end with 1 or 2. If the pattern happens to end with 0 then, the subwoofer will not generate any sound.
  • Try to check if the subwoofer power cord is connected to an active AC outlet and make sure the subwoofer’s power supply is switched on. If the subwoofer lacks a power cord, you will need to buy an active subwoofer. If any connections are loose, plug them in to secure the connection. A loose connection could be one of the reasons the subwoofer is not producing any sound.
  • Set the volume on the back of the subwoofer to the middle position.
  • Consider checking the power supply. Lack of power will make it impossible to start the amplifier. The subwoofer has 1.5 amp DC power adapters, and it is the ideal thing to check the voltage power output from the adapter. For the subwoofer to reproduce sound, it needs approximately 12v.
  • Using the remote control, press the volume up button to operate your audio receiver. In case the receiver is on, it will prevent sound from travelling to the subwoofer. Turning up the volume will automatically make the subwoofer reproduce some sound. Try using this tip as it can be the solution for most users.
  • Make sure the subwoofer’s receiver is connected to the right output. For instance, if you need to play a CD, make sure the audio system is set to CD. Leaving the setting, for example, on radio or anything besides the intended device you want to use could be the reason behind your subwoofers failure.
  • Unplug any headphones plugged into the subwoofer. If you have headphones plugged in, the receiver will automatically send the sound via the headphones instead of through the subwoofer. This could be a solution to people who tend to forget to unplug the headphones from the subwoofer.
  • If the subwoofer has cut off frequency adjustments, try setting it to the maximum position to pass all low frequencies directly to the subwoofer. This will make it possible for the subwoofer to generate the required sound.
  • If your subwoofer has a standby function, try turning it off. This will help fix any sound problems with your subwoofer.
  • Connect your subwoofer to another MIX or USB output on the stereo system if available.
  • If the stereo receiver has a different sound field, you can try selecting a different sound output. This is because some sound field settings may disable the subwoofer hence causing sound problems.
  • Try changing the subwoofer connecting cable.
  • Using an ohmmeter, check the wiring to ensure the subwoofer is connected to the right wires and even the wires to the amplifier. For the powered subwoofers, try to check the low-level signal cable with the 0.1 LFE signals. Try checking the fuse if it is already powered.
  • You can try connecting a DDM (digital multimeter) set to 20V to the receiver’s SW output and confirm for reading when playing audio which would use the SW. You can also test for low-frequency response headphones and confirm if you can hear any sound from the subwoofer.
  • Try opening the subwoofer to check the broads for any damage. Confirm if the voltage supply rails on the woofer circuit are in good condition.
  • Check the subwoofers connection and speaker wires. Ensure all the wires and connection points running across the amplifiers, receivers and even the speakers in the position and condition. Ensure the cables are plugged into the correct spots.
  • Inspect the entire length of the wire connection to identify any defects. If any bit of the wire appears to be worn, torn or even damaged, the best ideal thing to do is replace them. After replacing, try to perform a quick test on the wire to check if they can work. A worn or torn wire can easily become disconnected. Loose connections are prone to low or poor sound on the subwoofers.
  • You can solve the problem by fixing the RCA cables properly. Ensure that they match with the output on the subwoofer. Failure to these can lead to sound problems.
  • Frequently check the subwoofer control on the head unit of your car. This applies to instances where you need to fix your car’s subwoofer. This is because the subwoofer control can be set low, causing the subwoofer not to generate the desired sound.


There are a lot of ways to fix a subwoofer with no sound. The above article clearly illustrates some of the methods you can use to fix the subwoofer on your own. The tips are clear and will always give successful connections. In case one tip fails, it is always advisable to try a different one. Some of the tips are also available in the user manual.

In case you find it difficult to fix it on your own, try seeking professional help. Always go for the most reputable and positively reviewed experts. They will help you fix your subwoofer, thus saving you on the cost of buying another one. Fixing a subwoofer should no longer be a worry since this article outlines the best tips to follow.

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