Enhanced audio return channel), Audio return channel), P. 34) – Denon AVR-S660H 5.2-Channel Network A/V Receiver User Manual
Page 34: Connection 1 : tv equipped with an hdmi, Connector and compatible with the arc (audio, Return channel) / earc (enhanced audio, Return channel)

Connection 1 : TV equipped with an HDMI connector and compatible with the ARC
(Audio Return Channel) / eARC (Enhanced Audio Return Channel)
Use an HDMI cable to connect a TV that is compatible with the ARC / eARC function to this unit.
Set “HDMI Control” to “On” or “ARC” to “On” when using a TV that supports the ARC function. (
Using an eARC function-compatible television enables audio playback from the speaker connected to this unit, regardless of “HDMI Control” and “ARC”
settings in the menu.
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eARC function settings may be required depending on the eARC
function-compatible television you are using. Make sure eARC is set to
on if this setting exists on your television. For more information, check
your television’s owner’s manual.
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When an ARC and eARC function-compatible television is connected,
the eARC function is prioritized.
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Use a “High Speed HDMI Cable with Ethernet” when using an ARC /
eARC function-compatible television.
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Use a certified “Ultra High Speed HDMI cable” to enjoy 8K or 4K
120Hz video.
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Set “4K/8K Signal Format” to “8K Enhanced” in the menu to enjoy 8K
(ARC / eARC)
IN
HDMI
TV
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