“WHICH OPTION BETTER FOR DOLBY ATMOS , OPTICAL CABLE OR HDMI ? AND HOW CAN I FIND 3840*2160 SIGNAL?”

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• Hi, Dolby Atmos requires an HDMI connection as it is not compatible with optical.

  Answered by 4KFan 8 years ago

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• Yes a newer good HDMI cable with do the job and 3840x2160. Older HDMI cables might not be able to pass the signal. Optical will not pass the signal you need.

  Answered by Flatman 8 years ago

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• This is copied and pasted from CNET.com and will address your inquiry: Both HDMI and optical pass digital audio from one device to another. Both are better than analog (the red and white cables). Both can pass multi-channel audio, like Dolby Digital. Both cables can be had pretty cheap. The biggest difference is that HDMI can pass higher-resolution audio, including the formats found on Blu-ray: Dolby TrueHD and DTS HD Master Audio. These formats can't get transmitted across optical. In terms of simplicity, HDMI also passes video signals. So if you want just a single cable between two devices, HDMI is your pick.

  Answered by SparkyJax 8 years ago

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• You can not get dolby atmos with optical, just 5.1. Atmos Must be thru an HDMI Cable 2.0a

  Answered by MocpacX 8 years ago

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• You'll need an HDMI cable for both Atmos and a 4k signal.

  Answered by Yamez 8 years ago

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