Step-by-Step Instructions for Best Experience
Select your Xfinity model
STEP-BY-STEP GUIDE:​

NOTE
Connect Xfinity X1 (HDMI OUT) to TV HDMI input with a HDMI-certified High-Speed 2.0 cable (18Gbps) for high quality video and audio. Recommended HDMI Cable >
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Audio will be sent out via TV's HDMI ARC to soundbar HDMI 1 ARC
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Ensure your TV supports 5.1 channel pass-through via HDMI ARC. Click HERE to view a list of TV that supports 5.1 channel pass-through
Not all TV channels are broadcasting in Dolby Digital audio format. Refer to your channel info for more information.
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It is reported that the Xfinity X1 may experience sound skipping with Dolby Digital audio. It is recommended to set to Stereo output if you are experiencing such behavior. Xfinity Community Forum >
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NOTE
Connect Xfinity X1 (HDMI OUT) to TV HDMI input with a HDMI-certified High-Speed 2.0 cable (18Gbps) for high quality video and audio. Recommended HDMI Cable >
For streaming apps with Dolby Atmos surround, Xfinity X1 outputs the audio signal in Dolby Atmos MAT format.
​
Not all TV channels are broadcasting in Dolby Digital audio format. Refer to your channel info for more information.
​
It is reported that the Xfinity X1 may experience sound skipping with Dolby Digital audio. It is recommended to set to Stereo output if you are experiencing such behavior. Xfinity Community Forum >

NOTE
Connect Xfinity X1 (HDMI OUT) to TV HDMI input with a HDMI-certified High-Speed 2.0 cable (18Gbps) for high quality video and audio. Recommended HDMI Cable >
​
Audio will be sent out via TV's HDMI ARC to soundbar HDMI 1 ARC
​
Ensure your TV supports 5.1 channel pass-through via HDMI ARC. Click HERE to view a list of TV that supports 5.1 channel pass-through
​
Not all TV channels are broadcasting in Dolby Digital audio format. Refer to your channel info for more information.
​
It is reported that the Xfinity X1 may experience sound skipping with Dolby Digital audio. It is recommended to set to Stereo output if you are experiencing such behavior. Xfinity Community Forum >
2. CHANGE AUDIO FORMAT
1. Using Dolby ATMOS with Xfinity X1
Settings >
Device Settings >
Audio >
HDMI Audio Output >
select Expert Mode

Observe the LED light status at the front of soundbar when playing content (3 LED = Dolby Digital; 2 LED = DTS)
Press INFO button on soundbar remote control to verify audio format received on soundbar (Dolby/DTS for best audio)
