Some facts about HDMI 2.0 /ARC & HDMI 2.1/ eARC

SIDEWINDER18X

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ARC thru HDMI 2.0
Till now ARC or Audio Return Channel was the single wire medium where Dolby Atmos could be passed over regular ARC/ HDMI 2.0 (via Dolby Digital Plus)
The cables requirements were the HDMI 2.0/ HDCP 2.2 which handles transfer rates upto 18Gbps

eARC thru HDMI 2.1
(A higher bandwidth Audio return channel)
here Dolby Atmos passes (via Dolby True HD)
eARC
offers improved bandwidth for higher-quality
* Dolby Atmos
* Dolby TrueHD
* DTS-HD Master Audio streams
The new format also has lip-sync compensation built-in.

To enjoy or decode the latest Dolby True HD/Dolby Atmos and DTS HD master audio streams
The new format requires TV's with eARC thru
HDMI 2.1
and AV recivers with eARC outputs.
Similarly HDMI cables for this new generation format need HDMI 2.1/HDCP 2.2 cables which handles this high bandwidth rates of 48Gbps.
 
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