How to Fix a Subwoofer with No Sound for Home Theater

In a home music or home theater audio system, the subwoofer is usually one of the most important speakers in the room. However, after developing a new home theater, you sit down to watch a new film and notice that there is no sound.
There may be times when you may see visuals on your screen but hear nothing from any of your system’s speakers. Although the scenario is definitely irritating, it might be a simple and straightforward issue. Learn how to repair a subwoofer for a home theater system that isn’t producing sound.

Why do you need a subwoofer in home theater?

Before we proceed, let’s talk about why your home theater needs a subwoofer. Most speakers in an audio or home theater system are unable of reproducing all of the frequencies supplied to them by your audio source, therefore subwoofers are essential. If you don’t have a subwoofer, you’ll miss out on some of the sound. Low frequencies also help to create the full, rich, three-dimensional soundscapes that we love in movies and music.

How to fix a subwoofer with no sound for home theater

Below you’ll find a basic instruction on how to fix a subwoofer with no sound for home theater.

Examine every part of your subwoofer

You may want to look very carefully at every element of your subwoofer before you start!

  • Make sure the subwoofer is linked to the audio system’s or TV’s MIX or SUB output.
  • Establish that the subwoofer’s power cable is connected to a functional AC outlet.
  • Activate the subwoofer.
  • Make sure the subwoofer isn’t muted.

Check the volume of Home Theater

When you experience difficulties with the home theater system, checking your home theater receiver settings can make a big impact. It’s pretty easy to set it and forget it, which means you may put your system on mute and then forget about it when you come back to it.

Your receiver may or may not include the features or choices listed below, depending on the brand and model you have in your setup.

Many A/V Receivers feature volume knobs with no set minimum or maximum level, allowing them to be moved in either direction indefinitely. This makes determining your volume level by merely glancing at the knob challenging. Make sure that your volume level is sufficiently high to listen to all your speakers.

Some A/V receivers come with a Muting or Mute button which has no indication bulb to let you know they may be used. Ensure that your receiver isn’t silent when you push on or off this button.

You may not hear audio, or you may be deformed or faint audio if your A/V receiver contains a knob of a speech selection. You may have to set this button differently depending on the location where your speakers are attached in the back of the receiver.

No sound will come through your speakers if you have headphones connected to your home theater. Double-check your headphones and make sure they’re not connected.

Assess the Home Theater is on the Right Input

In order to find sound and picture effectively, your tv and A/V receiver components might need to make various “input” or “source” settings. This depends on the wires used and the many components you have placed, in all home theatre. This is different. These instructions discuss how the input parameters of your components may be checked and adapted to ensure they are proper.

There may be a problem with the inputs of your system if you have no sound nor video or even video without sound. The incorrect information might be set for your speakers.

To detect and modify sources on your television:

  • Locate your remote TV using the Input or Source button.
  • To start cycling on the screen, tap the remote on the TV and hit the Input or Source button.
  • When the input option is achieved, you want to test it, just cease pressing the input button. After a few seconds, the television switches to the input choice.
  • Your system is most usually connected to an HDMI connection which enables a single cable to deliver sound and video to the TV.

To check your A/V Receiver for changing sources:

  • Some A/V receivers include knobs to change the input or source they use.
  • Others feature actual buttons rather than a knob for certain inputs.
  • Alternatively, most A/V receivers are connected to their remote control with buttons for input or source.
  • Just spin the button or click the input or source button that you want to pick.

Check speakers using test tones

It is still time to test whether the receiver is able to create the sound through these speakers, if you have problems receiving any sound from the speakers attached to your receiver.

Most receptors have a “speaker setup” option that not only increases the sound intensity of particular speakers but also allows test tones to be sent to a single speaker or the entire system at a time. You can choose whether the recipient can broadcast audio to its connected speakers or not.

Inspect Your Home Theater Cabling

If you can’t hear test tones from several of your speakers, the next step is to double-check that all speaker wiring attached to the back of the receiver is correctly connected and in excellent working order.

There are a number different ways to connect speaker cables to receivers. Check that each speaker cable’s bare wires are in excellent contact with the binding posts, poles, or ports and haven’t fallen loose.

  • If your A/V receiver is equipped with spring-loaded clips, make sure the bare wire is fully inserted and making excellent contact with each port. This sort of connection is prone to breaking free, if wires are pulled on.
  • If your A/V receiver has binding posts or poles, make sure the speaker wires did not come free or slide out when tightening or repositioning the receiver in place.

Some speaker wiring isn’t color-coded for positive and negative, and instead uses text labels or a single line to distinguish positive from negative. At both the receiver and each speaker, double-check that the positive and negative ends are correctly connected.

Apart from the speakers, make sure that all of the receiver’s other connections are securely and completely attached.

If the Home Theater Sound System Is Still Not Working,

If you still have no sound on your home theater system after checking all and altering settings, for further information, please contact the product’s manufacturer. Connect a second subwoofer to the transmitting device if feasible to ensure the hardware problem isn’t caused by the sender. If the second subwoofer works, the first one is very certainly defective.

Wrapping up: How to fix a subwoofer with no sound for home theater

You can simply repair the subwoofer for home theater without sound, as you’ve seen. It’s important to take the time to identify and diagnose the issue so that you can properly repair it. With a little patience, you might be able to solve certain problems quickly and simply.

If the subwoofer won’t turn on at all, or if it does turn on but won’t play anything, it’s likely faulty and has to be replaced. And, before you go shopping, study up on your subwoofer basics so you know what would work best for you.


Well, we are almost at the end of the article. This FAQ is here to enhance your problems.

Do I need more than one subwoofer?

When it’s difficult to obtain even bass dispersion, several subwoofers might be utilized to fill in the gaps. Request assistance from your audio professional with this decision and placement.

How do I fix the sound on my home theater?