To add Sonos to your LG OLED TV, you connect a Sonos soundbar to the TV using either an HDMI ARC/eARC cable or an optical cable, then set it up through the Sonos app. This dramatically improves your TV's audio quality, delivering rich, room-filling sound that matches the stunning picture of your OLED display.
Before you add Sonos to your LG OLED TV: What you need
You need a Sonos soundbar (Arc, Beam Gen 2, or Ray), an LG OLED TV, the Sonos S2 app, and a WiFi connection. A broadband internet connection and a compatible WiFi router are essential for setting up and operating your Sonos system. Identify your soundbar's required port: the Sonos Arc and Beam (Gen 2) connect via an HDMI ARC/eARC port, while the Sonos Ray uses an optical digital audio output.
Connect a Sonos Arc or Beam (Gen 2) with HDMI ARC/eARC
- Locate the HDMI ARC/eARC port on your LG OLED TV. This port is often labeled "HDMI ARC" or "eARC" and is frequently HDMI 2.
- Use the HDMI cable supplied by Sonos to connect the soundbar's HDMI port to the LG OLED TV's HDMI ARC/eARC port.
- Enable HDMI-CEC on both your TV and Sonos system through their respective settings menus. This allows your TV remote to control the soundbar volume.
Connect a Sonos Ray with an optical cable
- Locate the optical digital OUT port on your LG OLED TV.
- Connect the supplied optical cable from the soundbar's optical port to the LG OLED TV's optical digital OUT port.
Set up the soundbar in the Sonos app
- Download and open the latest generation of the Sonos app (S2 Controller) on a compatible iOS or Android device.
- Follow the in-app instructions to "Set up a new system" or "Add Speaker or Component" and connect the soundbar to your Sonos system.
- Connect the soundbar to your WiFi network when prompted by the app.
Configure your LG OLED TV for optimal sound
Disable the TV's internal speakers in the audio settings menu to avoid audio echo or sync issues. Set the audio output to the correct source: choose HDMI ARC for the Arc or Beam, or Optical for the Ray. For Sonos Arc and Beam (Gen 2), which support Dolby Atmos audio via Dolby Digital Plus or Dolby TrueHD, adjust your TV's audio format settings to Passthrough or Bitstream to enable Atmos playback.
Tune your Sonos system with Trueplay
Trueplay tuning, available through the Sonos app and requiring an iOS device, is recommended to optimize the soundbar's audio for your room's acoustics. Follow the in-app instructions to walk around your room while the app plays test tones, which calibrates the sound to your specific space.
Troubleshooting common Sonos and LG OLED TV issues
If you experience no audio, first verify all physical connections are secure and that the TV's audio output is set to the correct source. For audio sync delays, adjust the audio delay or lip-sync settings in both your TV's audio menu and the Sonos app. If you cannot control volume with your TV remote, confirm that HDMI-CEC is enabled on both devices; for optical connections, you may need to use the Sonos app or the soundbar's touch controls. If your setup routes through a receiver, you can use Sonos with av receiver to manage volume and input switching more flexibly.
