The eARC (enhanced Audio Return Channel) feature is available for the following Denon models:

• AVR-X3400H
• AVR-X3500H
• AVR-X4400H
• AVR-X4500H
• AVR-X6400H
• AVC-X6500H
• AVC-X8500H

To use this feature a HDMI cable with Ethernet (HEAC) will be required. Standard or high speed cables without Ethernet do not support eARC.

In addition please note that currently only Sony TVs of A9F/Z9F series support eARC. Anyhow, there are more TV manufacturers that will offer this feature in the future.