How to Connect a Subwoofer to a Soundbar

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Updated September 27, 2022

If you are new to the world of TV audio, you may wonder how to connect a subwoofer to a soundbar. Many of the best speakers, after all, are top-quality soundbars, though these soundbars typically lack a dedicated bass element. So why connect a subwoofer to a soundbar, and what are the ways to get it done? Keep reading to find out.


  • Connecting a subwoofer to a soundbar is a great way to add extra speakers to your setup to increase sound quality and add bass.
  • The connection should be easy, so long as your soundbar features a dedicated subwoofer output and remote control for making settings adjustments.
  • Simply plug one end of a mono audio cable from the subwoofer input to the soundbar’s dedicated subwoofer jack. This should be the same process for built-in subwoofers, wireless subwoofers, and other types.

Why Hook Up a Subwoofer to a Soundbar?

It’s all about that bass, even if you are learning how to connect a soundbar to a TV with no audio output. Modern soundbars are fantastic for increasing highs and mids but sometimes lack in the bass department, even if you just learned how to control a soundbar with a TV remote. Subwoofers, however, are standalone add-on speakers that are designed from the ground up with bass in mind. While they’re generally easy to connect, you might have to learn how to hide soundbar wires to avoid aesthetic unpleasantness.

Insider Tip

Many soundbars allow multiple speakers to connect beyond subwoofers.

Subwoofers are a great way to add some much-needed bass to your setup, especially if you are wondering why your soundbar keeps cutting out. Even better? Many subwoofers are fairly inexpensive and well-made, so you won’t have to wonder why your speakers keep cutting out. Some even work wirelessly, in case you are trying to figure out how to connect a Bluetooth soundbar to your TV.

How to Add a Subwoofer to a Soundbar

It is fairly simple to attach a subwoofer to a standard soundbar, following the steps below.

STEP 1 Check Your Soundbar

  1. This process requires that your soundbar features a dedicated subwoofer connection port. Don’t worry; these ports are available on the vast majority of modern soundbars.
  2. Look for the subwoofer out jack on the back of the soundbar. It should be clearly labeled. Check the instructions if you are having issues.
  3. Look for the input port on your subwoofer.

STEP 2 Make the Connection

  1. Your subwoofer should have arrived with a mono audio cable expressly for the purpose of connecting it to a soundbar or any other speaker system.
  2. If not, purchase any mono audio cable online or at any nearby audio home store.
  3. Plug one end of this cable into the input port of the subwoofer and the other end into the subwoofer jack of the soundbar.
  4. That is all there is to it, as the soundbar should recognize the subwoofer and handle the rest.

STAT: A subwoofer is a much bigger speaker capable of reproducing even the lowest lows — those rumbling sounds that we actually feel more than we hear — making it the perfect complement to a soundbar. (source)

Subwoofer to Soundbar FAQs

What do I do if your Samsung soundbar won't connect?

If your wired subwoofer doesn't connect, check the cables throughout the sound system, as faulty wired connections are typically to blame. Check on any other external speakers and the HDMI channel.

How do I adjust the subwoofer amp panel?

If you are having issues with subwoofer sound quality when connected to certain soundbar models, unplug the subwoofer power cord and manually adjust the amp panel to direct front-heavy sound in another direction.

What is the on/standby indicator status?

Some subwoofers and soundbars use a pairing button to connect, especially wireless models. Once the subwoofer is plugged in via power cord, this indicator button will flash when paired.
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