TrueHD, Dolby Atmos, DTS-HD Master Audio, Dolby MAT and PCM7.1. If your sound system or TV is
muted, they do not support the respective sound format.
5.1
If set to 5.1 the HDMI source is informed about the support of formats up to 5.1. These include
Dolby Digital (AC3), DTS, PCM5.1 and PCM stereo. (If your sound system or TV remains mute, they
do not support the respective sound format.)
2.0
If set to 2.0 the HDMI source will detect that only stereo is supported. Sound system and TV should
therefore have sound in any case.
Auto
If set to Auto the switch does not interfere with the management of the sound format. Audio is
automatically negotiated between source and TV.
Note: For some HDMI sources, you can manually adjust the audio output to override EDID nego-
tiation. eARC is fully backward compatible to previous ARC protocol and supports further audio
formats like Dolby TrueHD and Dolby MAT. Therefore you can connect both ARC and eARC devices.
But your sound system requires eARC to receive advanced audio formats like Dolby TrueHD or
Dolby MAT (Atmos from Apple TV) .
Installation and Operation
• Connect 1 to 4 HDMI signal sources (e.g. Bluray player) to the HDMI inputs. Input 1 ARC to
Sound is designed for connecting a soundbar with HDMI-eARC.
• Connect an HDMI sink (e.g. TV or video projector) to the HDMI output
• Connect the power adapter to the HDMI switch and plug it into an electrical outlet. Then turn
on the TV / video projector, then the switch and an HDMI source.
• If a soundbar is connected, please active eARC by pressing the corresponding button
Caution: When plugging and unplugging the HDMI cables, take care not to dirty or damage the
plug contacts. Make connections without power and only switch on the devices after connecting
them. Please also make sure that the HDMI cables are of good quality - especially for 4k transmis-
sion. Good cables usually have a large diameter. We recommend a maximum cable length of 5 m
at the inputs and 3 m at the outputs for 4k HDR. For a longer cable run you can use a Hybrid Fibre
HDMI cable. Please make sure that HDMI-CEC and HDMI-eARC are supported by such cables!
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