The audio-visual world loves an acronym, so if you've heard about HDMI ARC or eARC and have been left scratching your head as to what these mean, then worry no more as we explain through these ...
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Sonos Arc Brings Room-Filling Dolby Atmos Without the ClutterSonos includes an optical adapter for older TVs, but the soundbar is designed to work best with HDMI and ARC (Audio Return Channel) functionality to transmit audio from your TV to the Arc.
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