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  • Writer's pictureCraig Whitaker

What is the difference between an ARC HDMI and an e ARC HDMI input?

As our clients are now benefitting from ARC HDMI connections, along comes e ARC. As a quick refresher, ARC is the acronym for Audio Return Channel. The ARC input with its 2-way capability, in addition to carrying the video signal to the TV, allows the ARC connection to carry the audio from your TV to your Home Theater system or Soundbar, providing the audio for the streaming services that are built into your TV. The e ARC stands for Enhanced Audio Return Channel. Basically, the e ARC provides for greater bandwidth and speed. The greater bandwidth provides for higher-quality Dolby TrueHD and DTS-HD Master Audio streams. HDMI-eARC is required to play lossless Dolby Atmos audio. An e ARC is not required for Dolby Atmos when encoded through Dolby Digital Plus. To get the full benefits of e Arc, 2.1 HDMI cables are needed. For Dolby Atmos with an ARC connection, there is no need to upgrade your HDMI cables. To schedule a free consultation to learn how you can upgrade your audio system, call 888-775-2673. Please visit our website @

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