Step-by-Step Instructions for Best Experience
Select your Xfinity model
STEP-BY-STEP GUIDE:​
![warning-2.png](https://static.wixstatic.com/media/757848_b68bfc68af224d2298eff2688cfd2b0b~mv2.png/v1/fill/w_98,h_100,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/warning-2.png)
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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![warning-2.png](https://static.wixstatic.com/media/757848_b68bfc68af224d2298eff2688cfd2b0b~mv2.png/v1/fill/w_98,h_100,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/warning-2.png)
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 >
![warning-2.png](https://static.wixstatic.com/media/757848_b68bfc68af224d2298eff2688cfd2b0b~mv2.png/v1/fill/w_98,h_100,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/warning-2.png)
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
![HOW11367_020518_02.png](https://static.wixstatic.com/media/757848_814490f5f6e94fd99f6cab0d54980be1~mv2.png/v1/fill/w_658,h_371,al_c,lg_1,q_85,enc_avif,quality_auto/HOW11367_020518_02.png)
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)
![select-you-soundbar copy.png](https://static.wixstatic.com/media/757848_87a7854269ea4098ae05febbd6c5a44a~mv2.png/v1/fill/w_716,h_78,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/select-you-soundbar%20copy.png)