The fastest way: HDMI with ARC or eARC

Most soundbars connect to your TV using a single HDMI cable plugged into the port labeled ARC or eARC on the back of your TV. This is the simplest method because one cable carries both picture and sound, and your TV controls the soundbar's volume using your remote. You do not need a separate receiver or amplifier.

Find the HDMI port on your TV marked ARC (Audio Return Channel) or eARC (enhanced Audio Return Channel). If your TV has both, use eARC—it handles more audio formats. Plug one end of an HDMI cable into that port and the other end into the HDMI input on the back of your soundbar. Turn on both devices. Your TV should recognize the soundbar automatically within a few seconds. If it does not, go to your TV's settings menu, find Sound or Audio, and select the soundbar from the list of output devices.

eARC works with most TVs made after 2016 and most soundbars made after 2018. If your TV or soundbar is older, it may only support standard ARC, which works the same way but with slightly fewer audio options. Both are reliable and require no setup beyond plugging in the cable.

Key Takeaways

  • HDMI ARC or eARC is the easiest connection method and requires only one cable from your TV to the soundbar.
  • Your TV must have an ARC or eARC port, usually labeled on the back panel, and your soundbar must have a matching HDMI input.
  • After plugging in the cable, check your TV's Sound or Audio settings to confirm the soundbar is selected as the output device.
  • If HDMI ARC is not available, optical audio (TOSLINK) is the next simplest option and works with older TVs and soundbars.
  • Bluetooth is convenient for streaming from phones and tablets but does not work for TV sound on most soundbars.

Optical audio connection for older TVs

If your TV does not have an ARC or eARC port, use an optical audio cable (also called TOSLINK). This is a thin cable with a small square connector on each end. Locate the optical audio output port on your TV—it is usually labeled "Optical Out" or "TOSLINK" and sits near the other audio ports on the back. Plug one end of the optical cable into your TV and the other into the optical input on your soundbar.

Optical audio is slower to set up than HDMI ARC because it only carries sound, not picture. You will need to tell your TV to send audio through the optical port instead of the built-in speakers. Open your TV's Sound or Audio settings, find the output options, and select Optical or External Speaker. The soundbar should begin playing your TV's sound within a few seconds. Volume control from your TV remote may not work with optical audio—you might need to use the soundbar's remote or buttons instead.

Optical cables are inexpensive and widely available. They work with almost any TV and soundbar made in the last 15 years, making this a reliable backup option if HDMI ARC is not available.

Bluetooth pairing for phones and tablets

Most soundbars have Bluetooth, which lets you stream music and podcasts from your phone or tablet without any cables. Press the Bluetooth button on your soundbar (or hold it for three seconds) until you see a light blink or hear a tone. The soundbar is now in pairing mode and will stay there for about two minutes.

On your phone or tablet, open Settings, go to Bluetooth, and look for your soundbar's name in the list of available devices. Tap it to connect. Once paired, your device will remember the soundbar and reconnect automatically the next time Bluetooth is turned on. You can pair multiple devices—your phone, tablet, and a family member's phone can all connect to the same soundbar, though only one can play sound at a time.

Bluetooth is convenient for personal audio but does not work for TV sound on most soundbars. Your TV would need to have Bluetooth output, which is rare. For TV sound, stick with HDMI ARC or optical audio.

Checking your TV's audio output settings

After you plug in your soundbar, your TV may still send sound to its built-in speakers instead of the soundbar. This is the most common problem people run into. The fix is straightforward: tell your TV where to send the sound. Press the Menu or Settings button on your TV remote and look for Sound, Audio, or Speaker options.

In that menu, find the option for audio output or external speakers. You should see a list that includes your TV's built-in speakers and your soundbar (it may be labeled by brand name, like "Samsung Soundbar" or "LG Soundbar," or straightforward as "HDMI ARC" or "Optical Out"). Select the soundbar. Your TV's built-in speakers should now go silent, and all sound should come from the soundbar.

If the soundbar does not appear in the list, unplug it, wait 10 seconds, and plug it back in. Then check the settings again. If it still does not show up, make sure the cable is fully inserted into both the TV and the soundbar—a loose connection is the most common reason a device does not appear.

Troubleshooting no sound from the soundbar

If you have connected the cable but hear nothing from the soundbar, start with the volume. Check that the soundbar's volume is not muted or turned all the way down. Look for a Mute button on the soundbar's remote or control panel and press it to unmute. Then turn the volume up to at least 20 percent using the soundbar's remote or buttons.

Next, confirm that your TV is actually sending sound to the soundbar. Go back to your TV's Sound or Audio settings and verify that the soundbar is selected as the output device, not the TV's built-in speakers. If the soundbar is selected but you still hear nothing, try unplugging the soundbar for 30 seconds and plugging it back in. This resets the connection and often fixes audio problems.

If you are using an optical cable, make sure the cable is pushed all the way into both ports—optical connectors are straightforward to insert halfway without fully seating. If you are using HDMI ARC, try a different HDMI cable. Some cables are damaged or do not support ARC even though they look normal. A fresh cable costs under $10 and rules out a cable problem quickly.

Connecting a soundbar to a TV without ARC or optical ports

Some older or budget TVs have neither ARC nor optical audio output. In this case, you have two options: use an HDMI adapter or connect through a cable box or streaming device.

An HDMI audio extractor is a small box that takes the HDMI signal from your TV's cable box or streaming device, strips out the audio, and sends it to your soundbar via optical or analog audio cables. Plug the HDMI cable from your cable box into the extractor, then run an optical cable from the extractor to your soundbar. This adds one extra device but works reliably. Audio extractors cost $20 to $40.

Alternatively, if you use a cable box, streaming device (like a Roku or Apple TV), or gaming console, you can connect the soundbar directly to that device instead of your TV. Plug an optical or HDMI cable from your cable box or streaming device into the soundbar. The soundbar will play sound from that device, though you will lose the ability to hear your TV's built-in apps. This works well if you watch most content through a cable box or external device.

Frequently Asked Questions

Do I need a soundbar remote if my TV remote controls the volume?

Not for basic use. When you connect via HDMI ARC, your TV remote controls the soundbar's volume automatically. However, a soundbar remote is useful for adjusting bass, treble, and sound modes, or for switching between inputs if you connect multiple devices. Most soundbars come with a remote, but you can also control them through a smartphone app if the manufacturer offers one.

Can I connect a soundbar to my TV wirelessly without HDMI or optical cables?

Bluetooth is wireless but does not work for TV sound on most soundbars—your TV would need Bluetooth output, which is uncommon. WiFi-based connections exist on some premium soundbars but require setup through the manufacturer's app and are less reliable than wired connections. For TV sound, a cable connection is the most dependable option.

What if my soundbar has HDMI input but my TV has no ARC port?

You cannot use HDMI without ARC because a regular HDMI port on a TV only sends picture, not sound. Use an optical cable instead, or use an HDMI audio extractor if your TV has no optical port. Check your TV's manual or the back panel to confirm which audio outputs are available.

Will connecting a soundbar affect my TV's picture quality?

No. Audio and video are separate signals. Connecting a soundbar changes only where sound comes from, not how your picture looks. Your TV's picture quality remains exactly the same.

How do I switch between TV sound and soundbar sound?

Once connected, your soundbar plays all TV sound automatically. To switch back to your TV's built-in speakers, go to Sound or Audio settings on your TV and select the built-in speakers instead of the soundbar. You can switch back and forth anytime without unplugging anything.