Audio Return Channel
各位bothers, 想請教下AV amp既ARC工能係乜?? 用左有乜好處??謝謝!! If both your TV and AMP have ARC function, then you dun need an extra optical cable to connect between your TV and AMP (for outputting the TV sound to the AMP), the HDMI will "UP" the sound from TV to the AMP, saving one optical cable
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