What to do if there’s no audio coming from your center and/or surround speakers.
Here are some things you can check
- Verify that the S/PDIF cable (coaxial or optical) is firmly connected to the TV Box and the home theater receiver.
- Verify that the home theater receiver is set to a surround sound audio mode (Dolby Digital, Dolby Pro Logic II®, Dolby Pro Logic®).
- Verify that the receiver is properly configured to work with all connected speakers.
Note: Not all Dolby Digital® programs feature full 5.1 surround sound. In some cases, the programs may only contain left and right stereo audio.
Note: This diagram shows HDMI connection only. Note that other cable types (coaxial, RCA, component) can be used to connect to the television.
Additional information
Visit our Online Support Center to find common solutions.
The easiest way to activate, manage, and troubleshoot your Xfinity experience is with the Xfinity app! Get 24/7 real-time support, pay your bill, view plan details, get outage updates, and more. Download the free Xfinity app, or scan the QR code with your smartphone.
Need additional support? Ask Xfinity Assistant.
