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Avid Contributor I
Jan 16, 2026 10:21 AM UTC

no surround sound from YouTube

 I’ve just setup my arc ultra,2x era300 sub

when I go to YouTube to do a 5.1 surround sound test. Nothing is hear out of the rear era300

what am I missing 

ty

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11 replies

Senior Virtuoso
Jan 16, 2026 12:40 PM UTC

YouTube is normally only stereo. There are 5.1 test samples online. 

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stevemgAuthor
Avid Contributor I
Jan 16, 2026 12:58 PM UTC

Ty for fast reply I’ll look for 1  online I did do search on YouTube for a 5.1 test

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bockersjv
Local Superstar
Jan 16, 2026 1:43 PM UTC

I’ve not found a true 5.1 yet.  Alll I get is Dolby 2.0

 

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jgatie
Jan 16, 2026 2:06 PM UTC

Ty for fast reply I’ll look for 1  online I did do search on YouTube for a 5.1 test

 

Searching is useless, because even the YouTube videos that claim to be 5.1 are only in stereo 2.0.  They are automatically downgraded when uploaded in order to save space.  Sometimes the videos marked as 5.1 or Atmos offer a download of the real thing, but that is not standard. 

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Stanley_4
Grand Maestro
Jan 16, 2026 2:33 PM UTC

If you search for Dolby Labs in a service that does provide working files you will find some to use. Amazon Music offers a nice selection if you have the service level that enables Atmos.

 

Amazon Dolby Labs search result

 

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jgatie
Jan 16, 2026 2:33 PM UTC

https://www.dolby.com/en-gb/about/support/guide/downloadable-dolby-atmos-trailers/

 

Check the link above for Atmos trailers you can download.

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Prodigy II
Jan 16, 2026 2:55 PM UTC

https://www.dolby.com/en-gb/about/support/guide/downloadable-dolby-atmos-trailers/

 

Check the link above for Atmos trailers you can download.

He is asking about DD5.1

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Prodigy II
Jan 16, 2026 2:56 PM UTC

youttube DD5.1 tests have always worked great on my playbar play1s and sub..

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jgatie
Jan 16, 2026 3:23 PM UTC

He is asking about DD5.1

 

The OP has a fully Atmos capable system.  If it plays Atmos, it will play 5.1.  Plus, Atmos will play as 5.1 if the system isn’t capable.

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stevemgAuthor
Avid Contributor I
Jan 17, 2026 3:50 AM UTC

Ty for everyone’s helpful input now I have my arc ultra 2xera300 and sub in app do I need to do anything in app or just leave it

 

thanks

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