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Optical works fine (if you run out of HDMI ports) but ARC HDMI lets the devices also control each other to an extent (turning on the TV or soundbar turns both on with HDMI ARC connected, for instance, and same when turning off either). There is no need to use both cables at once. Audio only goes through one at a time.
Sorry, there was a problem. Please try again later.Hi Diamond, You will want to only connect one or the other. If your TV has a HDMI input labeled TV ARC then you will want to use just the HDMI cable. This will offer you the best audio and user experience. ~Samsung Solutions
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