How to Connect a Soundbar to a TV with an Optical Cable

Updated July 2, 2026 · ConnectWizard

To connect a soundbar to a TV with an optical cable, run a Toslink optical cable from the TV's optical audio out to the soundbar's optical in, then set the TV's audio output to the optical/external option. Optical is the best choice when your TV or soundbar lacks HDMI ARC.

Connection Methods

Optical Cable 🔌 Wired

Locate the TV's optical (Toslink) output and the soundbar's optical input.
Remove the protective caps and connect the optical cable.
In TV audio settings, select optical/external speaker output.
Set the audio format to PCM if you hear no sound.

Parts you may need

🛒 Optical Audio Cable

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Pro Tips

Optical doesn't carry the newest Atmos formats — HDMI ARC does.
If silent, switch the TV's digital audio format to PCM.
Optical can't be controlled by the TV remote like ARC can.

Frequently Asked Questions

Optical vs HDMI ARC — which is better?

HDMI ARC supports higher-quality formats and remote volume control. Optical is a solid fallback when ARC isn't available.

Why is there no sound over my optical cable?

Set the TV's digital audio output format to PCM, and confirm the optical cable is fully seated at both ends.