I need a 10m or 15m cable to connect my new large TV to the amplifier in a cupboard nearby. All video sources are also in this cupboard and will be 4K HDMI switched by the amplifier.
The TV also has apps like AppleTV, Netflix etc which I want to use and send the audio from the TV down to the amplifier via eARC.
Therefore I need a long HDMI cable which will allow video to come one way (from Amp to TV) and eARC to go back the other way from TV to Amp.
Cables like Club 3D CAC-1377 claim to be eARC compatible, but also state that they are unidirectional. As I understand it I need a bi-directional cable for eARC to work.
Am I correct or do I miss something? Otherwise I need 2 cables, one from the TV to the Amp to take Audio to the amp and speakers and another from the Amp to the TV to take the switched video signals from the Amp.
How can a unidirectional cable claim to be eARC compatible?