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How to Fix Your Surround Sound System When It Isn’t Working

Surround Sound Not Working: Frustrated Man With Speakers

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Is your surround sound not working correctly? Maybe you have no sound from your speakers? Learn how to fix common problems with your home theater speakers.

It can be a frustrating time when you are having problems with your home theater speaker system. Maybe not all your surround sound speakers are working as they should?

But, where do you start when you are trying to fix it?

The trick to troubleshooting problems is to break things down into small actions and take them one step at a time.

It can be tricky. There may be several reasons why your surround sound system isn’t working correctly – and there are many different system types.

So, for each problem, I will list a few things to look out for.

You may need to try a few of them – or maybe just one will be the solution.

Let’s find out how to fix the issues if your surround sound isn’t working.

No Sound in Your Speakers at All?

If you are just not getting anything from your surround sound speakers, you have a significant problem. However, the solution may be something simple.

Consider some of these solutions:

  1. Make sure the amplifier is switched on: yes, I know it seems silly, but sometimes the answer is the obvious thing. Maybe the fuse has blown in the plug?
  2. Make sure the volume is up: did someone turn the volume to zero by mistake? Or is the audio muted?
  3. Check the wiring: make sure the speaker wire is securely connected to all your speakers. The correct channel to the correct speaker.
  4. Play a test tone: in most AV receivers, you can play an internal test tone signal to each speaker. Find this in the audio setup menu. Do you hear anything? If you do, then there’s not a major problem. It’s probably an issue with the source you are trying to play. Try the next couple of solutions.
  5. Check the amplifier’s source input setting: do you have the correct sound input selected on the amplifier?
  6. Try different sound sources: is the sound not working for all content sources? Try a CD player, DVD player, game console or TV sound from an app. Or, try connecting a new device to a different input. It might be a problem with just one source. If so, you can troubleshoot just that device.

No Sound in the Rear Speakers?

If you have a 5.1 or 7.1 surround sound system, you might not be getting sound on just the rear speakers – while the front speakers are working fine.

Here are some possible causes:

  1. Make sure you are playing a 5.1 soundtrack: by default, stereo audio may only appear in the front speakers. Test it with a 5.1 audio track and see if you hear anything.
  2. Enable an upmixing sound mode: if you don’t have any 5.1 soundtracks, enable Dolby Surround or DTS Neural:X to upmix the stereo sound to all your connected speakers. Your amplifier will need to support this type of sound mode – or it may have different ones that do the same thing.
    Selecting Dolby Surround On An Av Receiver Menu
  3. Run the AV receiver auto setup: make sure that you tell it which speakers are connected. When you set up an AV receiver, you need to tell it which speakers you have connected. If you didn’t specify that you had surround speakers, they won’t work. If you just added the speakers, you will need to run it again.
  4. Turn up the rear speakers output volume: maybe the volume for the rear speakers is too low? Go into the amplifier setup menu and turn up the rear speaker volume.
    Changing Speaker Volumes In Av Receiver Speaker Menu
  5. Check the wiring: make sure you have connected the correct output channels on the amplifier to your rear speakers. Maybe run some new speaker wire?
  6. Test the rear speaker wire: temporarily connect the wire for the rear speakers to the front speakers (remove the existing front speaker wire connection first). Do you hear anything now? If so, maybe the rear speakers are faulty?

No Sound in the Center Speaker?

Another common problem is not hearing anything from the center speaker. It can be difficult to tell sometimes because the front left and right speakers are so prominent.

The troubleshooting tips here are similar to the rear speakers.

  1. Make sure the audio is surround sound: if you are playing content with a stereo soundtrack, you won’t hear anything from the center speaker. This is probably the most common reason for hearing nothing from the center speaker. Play a movie that is in 5.1, and see if you hear anything now.
  2. Turn on a listening mode that upmixes the audio: if you want to use the center speaker with stereo audio, you’ll need to upmix the sound. Most modern AV receivers have Dolby Surround and DTS Neural:X sound modes which will do this. Enable these when stereo audio is playing, and you will hear sound from all of your connected surround speakers – including the center speaker. Older models may have Dolby Pro Logic II, Dolby Pro Logic IIx, Dolby Pro Logic IIz and DTS Neo:6 sound modes, and these are older upmixing formats that do the same thing.
  3. Rerun the automatic setup routine: most AV receivers have an automatic speaker setup process. Go to the setup menu for your device and run the routine again. This will check that you have all the correct speakers connected – and it will usually send a test tone to each one. If you get sound in the center at this point, then you know the wiring and config are OK, and the problem lies elsewhere.
  4. Check the speaker wire: if the center speaker doesn’t work during the setup, it may be a wiring problem. Double-check that you have correctly wired the center channel from the amplifier to the speaker. If it still doesn’t work, try some new speaker wire.
  5. Connect the center speaker wire to another speaker: try temporarily switching the speaker wires to diagnose a problem with the speaker itself. You could run the front left/right wire to the center speaker – or connect the center speaker wire to a front left/right speaker. This might tell you if there is a problem with the speaker or the amplifier channel. Don’t leave two channels connected to the same speaker while you do this!
  6. Turn up the center speaker: if the setup runs OK, but you’re still not happy with the level from the center speaker, then turn up the volume. In the audio menu for your amplifier, you should find a section to change the levels individually for each speaker. Raise the level by a few dB until you are happy.

No Sound in the Dolby Atmos Speakers?

In surround sound systems with Dolby Atmos speakers, things can get even more complicated. If you have height speakers installed overhead then it is common to think there is nothing coming from them.

But, they are meant to reinforce the sound, rather than be overpowering. This is where running a test tone for each speaker from the receiver can be useful. Then it’s easy to see if the speakers are at least working.

However, if you are getting nothing at all, consider these fixes:

  1. Play content with Dolby Atmos: make sure you are playing a Dolby Atmos soundtrack. If not, then you won’t get any audio in the overhead speakers.
    Dolby Atmos Codec On A Blu-Ray
  2. Enable an upmixing listening mode: if you don’t have any source for Dolby Atmos audio, then by default, most receivers will only play 5.1. You will need to enable the Dolby Surround or DTS Neural:X sound modes to upmix 5.1 audio to your Atmos speakers. Any Dolby Atmos-enabled AV receiver will have at least one of these.
  3. Check the wiring to the Atmos speakers: have you wired the overhead speakers correctly? Double-check the connections at the amplifier and the speaker.
  4. Check the auto-setup configuration in your AV receiver: have you told the receiver that you have Atmos speakers connected? If you have just installed them, you will need to rerun the setup.
    Selecting Dolby Atmos Speakers In An Av Receiver Setup Menu
  5. Try the rear speaker wire: if the rear speakers are working, try temporarily replacing the Atmos speaker wire with the cable for the rear speakers. Do you hear anything now? If not, there may be a problem with the Atmos speakers. Or, maybe the Atmos output channels on the amplifier aren’t working? To test this, temporarily connect the Atmos speaker wire to your rear speakers (which you know are working).

No Sound in the Subwoofer?

Most subwoofers are active speakers, which means they are self-powered. Therefore the problem may lie in the subwoofer itself – or the amplifier.

Things to think about:

  1. Make sure the subwoofer is switched on, and the volume is up: some subs have a volume control for the low-level and high-level inputs – make sure you are using the correct one. There is another output volume for the subwoofer in the AV receiver’s speaker setup menu – try turning this up up by 4 or 6 dB.
  2. Check the connection from the AV receiver: are you using the correct LFE output to the subwoofer’s low-level input? If you are using a high-level connection, make sure you have wired it correctly from the amplifier. Check the manual for your subwoofer if you are unsure.
  3. Use a test tone: go to the amplifier’s audio setup menu and run a test tone to the sub. If you hear something, then at least this part of the signal chain is working.
  4. Check the AV receiver’s speaker setup menu: make sure you have told the amp that there is a subwoofer connected. If not, enable it in the settings and rerun the auto-setup.
    Selecting The Number Of Subwoofers On An Av Receiver
  5. Set the front and rear speakers to the correct size: make sure you set your other speakers to ‘small’ in the amplifier’s audio setup menu. If they are labeled ‘large,’ the bass management will send the low bass to your main speakers instead of the sub.
    Changing The Speaker Size In An Av Receiver Setup Menu
  6. Check the amplifier’s crossover settings: a crossover setting of around 80Hz or slightly above is a good starting point for most rooms. If it’s too low, then you won’t hear much in the subwoofer.
    Changing The Speaker Crossover Ina N Av Receiver's Setup Menu
  7. Try a different cable: the subwoofer cable may be faulty.
  8. Test with suitable content: to test, make sure you play audio content with plenty of low bass frequencies. Rock or dance music is usually good.

Frequently Asked Questions

Why Is the Center Speaker Not Working on My Surround Sound?

The most common reason you can’t hear any sound on the center speaker is that you are playing stereo content. By default, most surround sound systems will only play stereo audio on the front left and right speakers. To use the center speaker with stereo sound, you will need to enable an upmixing sound mode on your amplifier like Dolby Surround or DTS Neural:X.

Why Are My Surround Sound Speakers Not Working?

There are several reasons why your surround speakers might not be working. The most common is that you may not be playing surround sound audio content – or have not enabled the surround speakers when performing your amplifier’s auto setup. Or, you might not have wired the surround sound speakers correctly to your amplifier.

Why Is My Surround Sound Working but Not My Subwoofer?

If your surround speakers are working but not the subwoofer, then you should check the following issues. Have you set your surround speakers to ‘large’ in the AV receivers speaker menu? Have you set the crossover frequency too low? Have you wired the subwoofer to your amplifier correctly? Have you got enough volume from the amplifier – and have you turned up the subwoofers volume control?

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About Home Cinema Guide

Paul started the Home Cinema Guide to help less-experienced users get the most out of today's audio-visual technology. He has worked as a sound, lighting and audio-visual engineer for around 20 years. At home, he has spent more time than is probably healthy installing, configuring, testing, de-rigging, fixing, tweaking, re-installing again (and sometimes using) various pieces of hi-fi and home cinema equipment.