How to Connect a Soundbar to a Samsung TV

The fastest way: HDMI eARC or optical cable

Most Samsung TVs connect to a soundbar through one of two ports on the back of the TV: HDMI eARC or optical audio. HDMI eARC is faster to set up and handles more sound formats, but it only works if both your TV and soundbar have eARC ports — usually labeled as HDMI 3 or HDMI 4 on Samsung models made after 2016. Optical cable works on nearly every soundbar and TV combination, though it carries fewer audio formats.

Check the back of your Samsung TV first. If you see a port labeled HDMI eARC or HDMI ARC, use that. If not, look for a small round port labeled Optical Out or Digital Audio Out — that is your second option. Your soundbar manual will tell you which ports it has. Once you know both devices have a matching port, you are ready to plug in.

Key Takeaways

HDMI eARC is the easiest connection method if your TV and soundbar both support it, requiring only one cable and automatic audio routing in most cases.
Optical cable works on older TVs and soundbars that lack HDMI eARC, though it carries fewer sound formats and may require manual TV settings changes.
After plugging in the cable, you must tell your Samsung TV to send sound to the soundbar through the TV settings menu, not just turn the soundbar on.
Bluetooth is a backup option if your soundbar supports it, but it adds delay and is not recommended for regular TV watching.
If sound still does not come through, check that the soundbar input is set to match the port you plugged into, and that the TV volume is not muted.

Connecting with HDMI eARC: step by step

Plug one end of an HDMI cable into the HDMI eARC port on your Samsung TV — this is usually HDMI 3 or HDMI 4, and the manual that came with your TV will confirm which one. Plug the other end into the HDMI eARC port on your soundbar. Do not use a regular HDMI cable if you have an eARC cable; eARC cables are built to handle the two-way audio signal.

Turn on the TV and soundbar. Open the TV settings menu by pressing the Menu button on your remote. Navigate to Sound or Audio settings — the exact name varies by Samsung model year. Look for an option called Sound Output, Speaker Settings, or External Speaker. Select it and choose Soundbar or HDMI eARC from the list. The TV will now send all audio to the soundbar automatically.

Test the connection by turning up the TV volume and playing content. You should hear sound from the soundbar, not the TV speakers. If you do not hear anything, go back to Sound settings and confirm the soundbar is still selected. Some Samsung TVs also have a separate toggle for Optical or eARC that must be turned on — check your manual if sound does not appear after selecting the soundbar.

Connecting with optical cable: step by step

Plug one end of an optical cable into the Optical Out port on the back of your Samsung TV. This port is small and round, often labeled Digital Audio Out. Plug the other end into the Optical In port on your soundbar. The cable is directional — the end going into the TV must come from the TV port, and the end going into the soundbar must come from the soundbar port.

Turn on both devices. Press Menu on your Samsung remote and go to Sound or Audio settings. Find Sound Output or Speaker Settings and select it. Choose Optical or External Speaker from the list. Some older Samsung TVs do not have this menu option — if you cannot find it, the TV is likely set to send audio through optical by default, and you only need to make sure the soundbar is set to receive from its optical input.

Check the soundbar itself. Most soundbars have a small button or dial on the back or side that lets you choose which input to listen to — HDMI, optical, Bluetooth, or aux. Make sure it is set to Optical. Turn up the soundbar volume and test with TV content. If you hear sound from both the TV speakers and the soundbar, go back to the TV Sound settings and look for an option to turn off the TV speakers or set them to External Only.

What to do if you do not see eARC or optical ports

Older Samsung TVs or budget models sometimes lack both eARC and optical ports. In this case, check whether your TV has a headphone jack or an aux port — these are less common but do appear on some models. If your soundbar has a matching aux input, you can use a 3.5mm aux cable to connect, though this method does not support surround sound or advanced audio formats.

If your TV has none of these ports, Bluetooth is your only wired-free option. Not all soundbars support Bluetooth, so check your soundbar manual first. To connect via Bluetooth, put the soundbar in pairing mode — usually by holding a button on the soundbar or remote for three seconds until a light blinks — then go to the TV settings, find Bluetooth or Wireless Speakers, and select your soundbar from the list. Bluetooth works but introduces a slight delay between the picture and sound, which is noticeable during movies and speech.

Fixing common connection problems

If you plugged everything in but hear no sound, start by checking the soundbar volume. Many soundbars ship with the volume set to zero or muted. Turn the volume dial or press the volume button on the soundbar remote and listen for sound. If the soundbar has a display, look for a mute icon — if you see one, press the mute button to unmute.

Next, confirm the soundbar input is set correctly. On the soundbar itself or its remote, look for an Input or Source button. Press it and cycle through the options until you see the port you plugged into — HDMI, Optical, or Bluetooth. The soundbar will not receive audio if it is listening to the wrong input. After switching inputs, test again with TV content.

If you still hear nothing, go back to your TV Sound settings and check that the soundbar is still selected as the audio output. Some Samsung TVs reset this setting if the soundbar is turned off or unplugged. Also check that the TV volume itself is not muted — press the Volume Up button on the TV remote and watch the on-screen volume bar. If the bar does not appear or shows a mute icon, press Mute to unmute the TV.

For HDMI eARC connections, try unplugging the HDMI cable from both ends, waiting 10 seconds, and plugging it back in. Sometimes the TV and soundbar do not recognize each other on the first connection. If the soundbar has a reset button, hold it for 10 seconds to reset the soundbar to factory settings, then repeat the connection steps.

When to use Bluetooth instead

Bluetooth is useful as a backup if your main cable connection stops working, or if you want to play music from a phone or tablet through the soundbar without switching TV inputs. However, Bluetooth introduces a delay of 100 to 200 milliseconds between the picture and sound — you will notice the actor's lips moving before you hear their words. This makes Bluetooth unsuitable for regular TV watching, movies, or gaming.

To connect via Bluetooth, put your soundbar in pairing mode by holding the Bluetooth button on the soundbar or remote until you see a blinking light. On your Samsung TV, go to Settings, then Sound, then Bluetooth Speaker or Wireless Speaker. Select your soundbar from the list. The TV will remember this connection, so you only need to pair once. After that, turning on the soundbar will automatically connect it via Bluetooth if the cable connection is not active.

Frequently Asked Questions

Do I need a special HDMI cable for eARC?

Any HDMI cable works for eARC, but eARC-certified cables are built to handle the two-way signal more reliably. A regular HDMI cable will usually work, but if you experience dropouts or the connection keeps cutting out, try an eARC-certified cable. They cost the same as regular HDMI cables.

Can I use both HDMI eARC and optical at the same time?

No. Your TV can only send audio through one output at a time. If you plug in both cables, the TV will use whichever one you selected in the Sound settings menu. The other cable will be ignored.

Why does my soundbar keep disconnecting?

Loose cables are the most common cause. Check that both ends of the HDMI or optical cable are pushed firmly into the ports. If the cable is loose, the connection will drop. Also check that the soundbar is not overheating — if it is in an enclosed space or covered by a blanket, move it to open air and try again.

Will the soundbar work if my TV is in standby mode?

No. The TV must be fully powered on to send audio to the soundbar. If you turn off the TV with the remote, the audio signal stops. Some soundbars have a standby mode that lets them stay connected and wake up when the TV turns on, but this depends on your soundbar model.

What if my soundbar is older and does not have eARC?

Use an optical cable instead. Optical has been standard on soundbars for over 15 years, so nearly every older soundbar has an optical input. The connection process is the same — plug the cable in, select Optical in your TV Sound settings, and set the soundbar input to Optical.

This guide is for general information only and is not medical, financial, legal, or other professional advice. For decisions specific to your situation, consult a qualified professional. See our Editorial Policy.