Hello,
I just made a small test with the 2 output HDMI of the Egreat A11.

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1st test With a pioneer Elite SC81 which does not support the DTS X, ATMOS and the HDR, with a Sony TV 4k 850D compatible HDR.
Second testWith a Onkyo 656 which support the DTS X, ATMOS and the HDR, with a Sony TV 4k 930C compatible HDR.
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I did the test with a video UHD HDR that has a DTS HD soundtrack, because it seems to me to have seen that the hdmi 1.4 supports HD sound 7.1
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With the Pioneer I have DTS sound (but no HD), it is not catastrophic because it allows me to enjoy movies in UHD HDR with the dual HDMI output of Egreat A11 on my TV 4k HDR

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With the Onkyo TX-NR656 I have DTS HD sound compared to the pioneer who only has DTS sound

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Does this mean that a receiver not compatible with DTS-X and Atmos will not have HD sound with the hdmi 1.4 output of the A11,
despite the fact that the receiver is DTS HD compatible.
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thank you in advance
OlivierQC