Sony HT-A9, Help Manual

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All HDMI IN and HDMI OUT (TV ARC/eARC) jacks support transmission of 4K 120p or 8K, HDCP2.2 and
HDCP2.3(*1), BT.2020 wide color spaces(*2), and HDR (High Dynamic Range)(*3) contents pass-through.
When connecting to a TV which resolution is different from that of the speaker system, the speaker system may
restart to reset the picture output setting.
5-025-234-11(2) Copyright 2021 Sony Corporation
HDCP2.2 and HDCP2.3 are newly enhanced copyright protection technology that is used to protect content such as 4K movies. If the device is
compatible with HDCP2.2 or HDCP2.3, you can watch contents even if the HDCP version is different, such as an HDCP2.2 compatible TV and
an HDCP2.3 compatible 4K device.
*1
BT.2020 color space is a new wider color standard that is defined for ultra-high definition television systems, etc. *2
HDR is an emerging video format that can display a wider range of brightness levels. The speaker system is compatible with HDR10, HLG
(Hybrid Log-Gamma), and Dolby Vision.
*3
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