Skip to main content
LM404
Contributor I
November 7, 2024
Question

Arc Ultra + Era 100 Surrounds

Arc Ultra and Era 100’s 

 

Anyone else have this setup and noticing that the Era 100’s as rears are doing less work with the Arc Ultra when compared to the standard Arc? I’m barely noticing any audio coming from the rears even with the surround volume turned up to maximum.  I swapped my original Arc back with the Era 100 surrounds and tested the same Atmos movies on the Arc and the Arc Ultra, and there is a significant difference/reduction in the signals being sent to the Era 100’s in the rear channels with the Arc Ultra.  Increasing the “TV Level” setting for Surround Audio in the Sonos app increases the front surround volume coming from the Arc Ultra but the signals coming out of the ERA 100 rears are almost non existent. 
 

Is this behavior the result of how the Arc Ultra processes surround channels, and should be considered normal operation?

    This topic has been closed for further comments. You can use the search bar to find a similar topic, or create a new one by clicking Create Topic at the top of the page.

    302 replies

    Show previous replies
    Gavalar
    Enthusiast II
    March 7, 2025

    5 months in and still no fix. The latest app update still hasn’t fixed this.

    Disappointed is an understatement…

    MiamiC70
    Trending Lyricist I
    March 7, 2025

    Agreed. This is basic functionality of a SURROUND speaker!

    Sonos communication and follow through is atrocious. 

    Patriekvg
    Enthusiast I
    March 7, 2025

    5 months in and still no fix. The latest app update still hasn’t fixed this.

    Disappointed is an understatement…

    I agree, but let's not exaggerate; the Ultra was released less than 5 months ago. And let's stay fair and say the issue has been reproduced / verified by Sonos around 3 months ago.

     

    And yeah, that's still very disappointing.

    MiamiC70
    Trending Lyricist I
    March 7, 2025

    Three months IS A LONG TIME in technology especially given this is a flagship product. 

    Gavalar
    Enthusiast II
    March 7, 2025

    Hi ​@Patriekvg, I had mine on release day, which was in October, which is 5 months ago? Or a couple of weeks off anyway.

     

    I contacted Sonos to state the issue before it was commented on here and I was advised they knew about the issue and were looking into it…

     

    I don’t think I have exaggerated here?

     

    Even 3 months is too long!
     

     

      MiamiC70
      Trending Lyricist I
      March 7, 2025

      So it just keeps getting better. 
       

      Now, after TruePlay my Era 100’s sound TOO loud and I can’t adjust them and even turning off TruePlay and adjusting them to “less than 2 feet” as soon as TruePlay is turned on it resets them to “more than 10 feet.” I have video but no way to upload it. 

      DaytonJohn
      Lyricist III
      March 10, 2025

      So it just keeps getting better. 
       

      Now, after TruePlay my Era 100’s sound TOO loud and I can’t adjust them and even turning off TruePlay and adjusting them to “less than 2 feet” as soon as TruePlay is turned on it resets them to “more than 10 feet.” I have video but no way to upload it. 

      Can’t you go in the Sonos App, select the “Room” that has the Surround Configuration and get the Era 100s out of that Room’s configuration and then add them back but do not use TruePlay again.  

      MiamiC70
      Trending Lyricist I
      March 15, 2025

      ​@Corry P What is Sonos doing about this issue? Where is a statement / resolution timeline for this? 

      stevetsanders
      Lyricist III
      March 15, 2025

      At least we do have the issue on the trello board, so it’s been publicly acknowledged by sonos to some extent.

       

      https://www.reddit.com/r/sonos/comments/1jbemz8/an_update_to_the_trello_board/

       

      https://trello.com/b/4T9rbg8t

        Zorro88
        Enthusiast II
        March 17, 2025

        It seems Sonos has changed something in the surround settings. This could be positive for this Era 100 rear speaker issue:

        https://www.reddit.com/r/sonos/s/3dbnR9bi5I

         

        „After hearing your feedback, the team has made changes to the way that the slider works. With this update, the Surround Audio Level setting within the Sonos app will allow the volume of the surround audio to be raised or lowered in the rear speakers only. This will let you dial in the amount of surround audio you're looking for.“

         

        Has anyone tested this new update? (I can‘t anymore, I have sold my Arc Ultra already)

          Show more replies
          Terms & ConditionsAccessibility statement