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HDMI ARC and eARC: Audio Return Channel for beginners - CNET
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Sharp 160W 2.1 Slim Soundbar System with Wireless Subwoofer, Bluetooth – Electric Mania
New EGL Soundbar and Subwoofer HDMI Bluetooth 2.1 Sound System Set | eBay
What is HDMI-eARC/HDMI 2.1 and How Does it Differ from HDMI-ARC? – Klipsch
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Samsung's Q990D soundbar has the one thing the 2023 version didn't: HDMI 2.1