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No Sound on Surround Speakers?
For Shockwafe DTS:X Series Soundbars

Set PURE DIRECT to NEURAL X or OFF to enable all-channel upmixing and playing surround sound effects on all surround speakers.

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soundbar-remote-direct-2.png

Press the PURE DIRECT button to toggle NEURAL X or OFF shown on soundbar's front LED display.

NOTE: For PCM 2.0 content playback on Youtube, Hulu and other streaming services, the surround effects may not be significant after upmixing. It is highly depending on the contents with specific audio elements such as ambients, background music tracks and echo (reverb) effects. To enjoy best surround audio, always set your device to output Bitstream/Dolby/DTS audio format.