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Contributor I
March 28, 2021
Answered

arc cable

What is the max band width on the hdmi cable that comes with the arc. Do I need to buy say an 8k type cable?

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    Ken_Griffiths
    March 28, 2021

    Any HDMI cable with HEAC support can handle eARC. Both the HDMI cable which comes with Beam and Sonos Arc have HEAC support.

    Technically, there are four kinds of cable:

    • Regular HDMI
    • High-Speed HDMI
    • High-Speed HDMI with ethernet 
    • Ultra-High-Speed

    The cable that comes with the Beam/Arc is a High Speed one with ethernet, where the ethernet pins are used for eArc. Quite often referred to as HDMI 1.4+

    Personally speaking, I would just use the cable supplied.

    4 replies

    Lead Maestro
    March 28, 2021

    Only audio is being sent through the HDMI cable to the Arc. The Sonos-supplied cable is sufficient for lossless audio formats like Dolby TrueHD and multichannel PCM. An “8K” cable isn’t necessary.

    "Receive with simplicity everything that happens to you." - Rashi
    106rallye
    March 28, 2021

    What would be the sense of bundling a cable with the soundbar that would not be up to the task of transporting the information needed by the soundbar? 

    Ken_Griffiths
    March 28, 2021

    Any HDMI cable with HEAC support can handle eARC. Both the HDMI cable which comes with Beam and Sonos Arc have HEAC support.

    Technically, there are four kinds of cable:

    • Regular HDMI
    • High-Speed HDMI
    • High-Speed HDMI with ethernet 
    • Ultra-High-Speed

    The cable that comes with the Beam/Arc is a High Speed one with ethernet, where the ethernet pins are used for eArc. Quite often referred to as HDMI 1.4+

    Personally speaking, I would just use the cable supplied.

    Lou_18Author
    Contributor I
    March 30, 2021

    Thank you!!!