How to Fix a Subwoofer With No Sound

You may have noticed that your subwoofer is not producing any sound. What can you do to fix this? After discussing the problem with a technician, we found out that many electronic devices use cables and wires for power and data transmission. These two functions might get mixed up if they are connected incorrectly or improperly, which in turn could cause your device to stop working properly. This article will guide how to fix a subwoofer with no sound.

How to Fix a Subwoofer With No Sound

What is Subwoofer?

A subwoofer is a loudspeaker designed to produce low-pitched audio frequencies and reproduce deep bass sounds. It often has a larger speaker cone than the other drivers in an enclosure, with its output normally extends down to 20 Hz or below – lower than what most people can hear (about 25 Hz), so it cannot be considered the full range.

The typical use of such speakers is providing rumbling sound effects for movies and music that will go under pitched noises or voices without adding too much high-frequency information.

Subwoofers are typically added to home theater systems, computer multimedia displays, PA system amplifiers/speakers, car multimedia systems, etc. Still, they may also have applications elsewhere if their outputs reach sufficiently low frequencies, like in large rooms or auditoriums, for example.

How To Fix A Subwoofer With No Sound

When a subwoofer is working properly, it will make an audible noise. If there’s no sound coming from the speaker, then something needs to be fixed. Possible causes for this include broken wiring or damage to the amplifier card. In some cases, all that might need fixing is a blown a fuse in your car’s audio system.

The first step should always be to identify and address any potential issues with the power supply before assuming other components are at fault (though many people have found that their problem was caused by one of these minor problems). Here are steps you can take:

  • Check the fuse box in your car. If it looks like there’s a blown a fuse, replace it with one of similar amperage to prevent damage from occurring if you use a higher-rated device.
Check the Fuse Box in Your Car
  • Make sure that all wiring is connected and secure. The subwoofer will not work without wires attached because they are the source of power for the speaker cone vibrations, which produce sound waves.
  • Look at connections on the back panel or amplifier card where the wire attaches (looks messy? unplug and check connections). Inspect any visible cables for breaks in insulation which could be an obvious sign of problems with how the wiring was installed when new equipment was put into place; this problem can often be fixed by simply tightening connectors on loose pins.
  • Check for loose or broken wiring in the subwoofer.
  • Replace speaker cones if they are torn, cracked, punctured, and/or damaged due to age (this is a common problem with all speakers).
  • Make sure that the volume level on the amplifier is turned up enough so that it does not get distorted when sound waves move through drivers of subwoofers because too little power will lead to distortion.
  • Try plugging your device into different outlets as well as different power strips; this can often be an easy fix for devices that no longer produce any noise but were just unplugged incorrectly from their original location at some point. Don’t forget about trying plugs where there’s electricity running even though you might not use the outlet.

Precautions While Fixing a Subwoofer With No Sound

  • Turn off the power to your subwoofer before performing any work.
  • Check all connections, including speaker wires, plugs, and screws, for tightness or looseness. If they are loose, tighten them with either a screwdriver or pliers.
  • Verify that you have powered it on correctly by checking the LED lights on the back of your device. There should be an ‘on’ light lit up when it is plugged in correctly and turned on properly. Make sure there is no red wire indicating a blown a fuse, as this will prevent the proper operation of your system (this would require replacing).
  • If all the connections are tight and you still can’t hear the sound, try turning up your system’s volume. If this does not fix it, please consult a professional as there may be something wrong with your amplifier or speakers, which will require further troubleshooting.

Things to Do For Keeping a Subwoofer in Good Condition

  • Check the volume and balance settings on your amplifier. Make sure it is turned up to a reasonable level but not too loud.
Check the Volume and Balance Settings
  • If you are using an FM transmitter or receiver, make sure that the antenna is connected securely, then check for interference by turning off nearby electronics – such as microwaves and mobile phones- one at a time until you discover what’s causing the problem. Try moving it around if necessary.
  • The best location for an FM transmitter antenna is in front of where people will be sitting when they watch TV (elevated height) with a clear line of sight to both their television set and outside access point/source from which the signal originates). An AM Receiver needs outdoor space within range of the broadcast tower.
  • If you are using an audio cable, make sure all connections – to the amplifier and subwoofer unit itself – are securely in place. Check that your speakers have power by trying them on another input source.

The most common cause of a low volume is a loose connection between the receiver or amp and either the TV set or speaker system. Ensure both ends of each wire connector (left + right) are tightly plugged into their respective ports.

Personal Safety Guidelines

  • Do not work on any electrical devices with wet hands.
  • Unplug the device before starting to work on it, and be sure no one else is using the appliance when you are working on it.
  • Always keep an expert near while performing electrical tasks.
  • Before using any electrical equipment, read out the manual properly.


We hope that the process stated above will help you with how to Fix a subwoofer with No sound. You should always maintain the safety guidelines and while checking the cables, keep your distance from the main power source. This will ensure workplace safety. thank you, and have a good day.

You may read also: How To Fix Headphones That Sound Underwater

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