How do I connect my surround sound to my Xfinity X1 box?
Christopher Pierce
Updated on February 26, 2026
Connect the Comcast receiver’s HDMI port to the HDMI port on the surround sound system’s receiver or with a HDMI cable.
- Turn on the Comcast receiver and the surround sound system’s receiver.
- Select the channel that the Comcast receiver is connected to on the surround sound system’s receiver.
Do the X1 boxes have an audio output?
Learn how to change your audio language and manage the audio mode using the Xfinity X1 On-Screen Guide. With the Audio Mode, you can choose from HDMI Audio Output (Stereo or Auto Detect) or Digital Audio Output: Optical/SPDIF (Stereo or Dolby Digital 5.1).
How do I fix no sound on my Xfinity TV?
Method 1: Adjust the HDMI Input Format.
- Click the XFINITY button on your Xfinity TV Remote Control.
- Scroll to the Gear Icon.
- Choose “Device Settings”.
- Select “Audio”.
- Go into “HDMI Audio Output” and switch it to “STEREO.”
- Adjust Settings on your Actual TV (Samsung, LG, Sony… etc.) Look them up by Brand.
Why is there no sound on some Comcast channels?
Verify that you are using the correct TV audio input. If the issue is not resolved, proceed to the next step. Reset the audio by pressing Mute on the video device remote. If the remote is programmed to control the television volume, it may have to be programmed to control the video device volume.
Can I connect my soundbar to my cable box?
If your TV supports ARC connections, it means you can connect all your kit (set-top boxes, games consoles, etc.) to your soundbar, then just use a single HDMI cable to connect your soundbar to your TV.
Do I connect my soundbar to the TV or cable box?
It’s better to connect your soundbar with an HDMI cable because it provides better quality sound. While HDMI and optical connections both pass digital audio from one device to the other, HDMI is capable of handling higher-resolution audio.
Why does my cable not have sound?
The following are the possible causes for sound not to output when a cable box is connected to an AV receiver and to the TV using an HDMI® cable. If the settings of the cable box is not set correctly. If the cable used to connected the TV and the cable box is not connected properly.
How do I troubleshoot an issue with my Xfinity X1 TV box?
When troubleshooting an issue with your Xfinity X1 TV Box, you may be directed to restart the device or you may resolve it online with a system refresh. If our system detects an issue that cannot be fixed through a restart, refresh or other online troubleshooting steps, we’ll offer the option to schedule an appointment with one of our technicians.
What happens if I restart the X1 DVR while recording?
Be careful not to restart the X1 DVR while a recording is in progress. Playback will stop on any TV Boxes streaming recordings from an X1 DVR if the X1 DVR is restarted. Playback can resume when the restart is complete. Already-recorded programs will not be lost. Scheduled recordings will also not be lost (will not need to be scheduled again).
Why does my xfx1 TV box keep restarting?
X1 TV Boxes are scheduled to restart every night in order to apply necessary updates or perform general maintenance. If you are watching live TV or a pre-recorded program at the scheduled time of the restart, you’ll be given the option to delay it until the next night via a message that will appear on your screen.
Does the xg1v4-a make the same noise as the px013anm?
Yes, I suspect you will experience the same humming noise. The technician who made my service call said it was the internal hard drive AND the fan causing the noise. Anyway, he swapped it out with a brand new device (the PX013ANM was a refurbished unit), an XG1v4-A, which is so quiet I can hardly hear anything.
