“Hdmi 4 supports eARC but only 4k 60hz. Hdmi 2 is 4k 120hz. How can you connect a home theater receiver 4k 120hz and get eARC to function? Do you have to use 2 hdmi inputs? Or stuck with 4k 60hz when using eARC?”
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If your theater receiver has an optical input (it likely does) and you want 4k 120hz use HDMI 2 and digital optical line output from the tv. Works great and audio optic lines are inexpensive. I had to run a 50 foot length for my setup due to switching from a ceiling mounted projector to this 98 inch TCL.
Sorry, there was a problem. Please try again later.For Audio out, you would need to use the eARC port if connecting via HDMI. Hope this helps! Thank you, TCL Customer Support
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