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Matclane
Contributor I
October 29, 2024
Answered

Arc Ultra + Sub Gen 3 : Sub less powerful than before !?

Hi,

I just replaced my Beam (Gen 2) by a Sonos Arc Ultra, in my home theatre system.

But now, the Sub Gen 3 seems to be a lot less powerful.

Before, with the Beam, when I pushed the Sub level adjustment to +2 or +3, i was able to balst the entire room… Now, even if I choose +8 on the Sub level adjustment, I feel it but very light. I can’t have the same “bass blast effect”.

Obviously, I completely reinstalled the system in the App and reseted each element of my home theatre system when I installed the Arc Ultra (included x2 Era 100 at the back).

Does anyone knows why this is happening (maybe someone at Sonos)...?

Thanks a lot.

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    Corry P
    Corry PAnswer
    Sonos Staff
    January 6, 2025

    Hi ​@Matclane et al

    We now consider this issue to have been resolved. Please ensure your Sonos system is up-to-date, and if you still experience this issue, please get in touch with our technical support team to report as much.

    I hope this helps.

    "Common sense is the collection of prejudices acquired by age eighteen." - Albert Einstein
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    63 replies

    mortenjohnsen
    Lyricist I
    October 29, 2024

    I have the EXACT same expirience .

    I actualy feel I get mere bass when switching the sub off in settings . 

     

    Hope for a solution or explanation soon.

     

     

     

      MoPac
      MoPac
      Headliner III
      October 29, 2024

       Has TruePlay been executed?

      mortenjohnsen
      Lyricist I
      October 29, 2024

       Has TruePlay been executed?

      Yes this is after TruePlay.

      I swiched from Arc+sub to Arc Ultra+sub . so the difference is very noticeable regarding the bass from the sub

        MatclaneAuthor
        Contributor I
        October 30, 2024

        Yes trueplay been executed too. We really need to know what to do (if there something to do…?).

        Anyone at sonos could tell us if will there be an update for this ?

        Buying a better sound bar to get less power from the Sub is a problem…

        MilesAB
        Contributor I
        October 30, 2024

        Just received my Arc Ultra (to replace my existing Arc). My setup is Arc Ultra, 2 x Era 300, 1 x Sub Gen 3. After several failed attempts to initiate advanced trueplay tuning on Ipad IOS it finally worked. However I noticed that the sub bass was almost non-existent. I have to turn it upto +10 to feel some rumble. I saw some previous threads that this was an issue before with the Arc and sub but had been allegedly fixed with software update. However this issue of quiet sub bass is an issue for me. Especially when I compare it to the previous Arc plus sub sound. I know I can turn off trueplay but doesn't that defeat one of the main selling points of an optimized sonos setup. Seems that other people are having the same issue.

          monkeycat
          Lyricist II
          October 31, 2024

          Arc Ultra + 300’s + 2 Sub’s

          Bass is completely broken…

          my Arc + 1’s + sub, sound better 🙃

            JakeSteed
            Lyricist III
            November 1, 2024

            I posted this in a different thread before but it seems more fitting here:

            I have got the same impression. Arc ultra, upgraded from an Arc, 2 Era 300 as Surrounds and a 4Gen and 3Gen Sub, upgraded from a 3Gen and 2Gen.

            Left the settings as they are, true play measured twice in advanced mode. The surround speakers are very present and loud in this configuration while the bass at the same time is absolutely underwhelming. I cranked up the sub level to +2 and the Equalizer Bass setting to +1 but still I am missing the spine and stomach shaking whoomp below 120hz that I got used to from my 2G and 3G sub.

            I love how the Arc ultra plays in every direction with almost pinpoint accuracy. That is pretty much the same feeling I had when the Arc replaced my Playbar. The surround speakers may be toned down a bit, but I really am missing bass. Especially since the 4G Sub is marketed as double the bass of a 3G or something along those lines.

            iBoyley
            Trending Lyricist I
            November 1, 2024

            Lots complaining of similar issues over on Reddit, would appreciate somebody from SONOS providing a definitive response on this issue

              selliots
              Lyricist I
              November 1, 2024

              Having the exact same issue. I no longer have any bass in my music (I use Andrea Boccelli Con Te Partiro in Dolby Atmos as a baseline - on arc + sub gen 3 it sounded incredible. Now with Arc Ultra it sounds awful. No bass. I think I might return the ultra and stick with the arc. 

                JakeSteed
                Lyricist III
                November 1, 2024

                I am sure what is happening here and if the True Play has gotten new algorithms or a complete makeover or what but when I replaced the Arc with an Arc ultra I had to set up my entire Sonos system again. I am running a stereo pair of old Play1s in the bedroom with a Sub mini as an alarm clock and I can tell you that the bass is gone there, too. 

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