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HDMI eARC and HDMI 2.1 Demystified: Everything You Might Want to Know
What is HDMI-eARC/HDMI 2.1 and How Does it Differ from HDMI-ARC? – Klipsch
Is eARC the same as HDMI 2.1? – OREI.COM
Hooking up eArc and HDMI 2.1 on Receiver with Samsung QN90A | AVS Forum
Lattice Simplifies Audio Connectivity and Improves Performance with HDMI 2.1 Enhanced Audio Return Channel (eARC) Solutions | audioXpress