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philosopher
Contributor I
Dec 17, 2025 3:33 PM UTC

Dual Sub4s with Era300 (no soundbar)

So, as I’m waiting for the Arc Ultra to arrive, I stereo paired the Era300s and then added one Sub4.
I then saw I was able to add the second Sub4 to the stereo pair.

From what I read this shouldn’t be possible unless I had an Arc.
And yet here I am, with a stereo pair of Era300s and two subs.
A bug of the app? A new feature not documented?

 

 

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    19 replies

    Mr. T
    Mr. T
    Dec 17, 2025 4:05 PM UTC

    Are the Era 300s definitely a stereo pair and not just grouped, with a Sub assigned to each separate speaker?

    Can you post a screenshot of how the 4 products appear in the app?

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    Stanley_4
    Stanley_4
    Grand Maestro
    Dec 17, 2025 4:05 PM UTC

    That is very odd, don't recall seeing it mentioned before. Hope someone from Sonos sees this!

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    Airgetlam
    Airgetlam
    Dec 17, 2025 4:08 PM UTC

    Could be either. 

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    Bruce
    philosopherAuthor
    Contributor I
    Dec 17, 2025 4:08 PM UTC

    Are the Era 300s definitely a stereo pair and not just grouped, with a Sub assigned to each separate speaker?

    Can you post a screenshot of how the 4 products appear in the app?

     

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      Mr. T
      Mr. T
      Dec 17, 2025 4:18 PM UTC

      Thanks, not with my system just now to try myself, but yes that’s a stereo pair with dual Subs!

      Probably a bug as if it was a new feature, you’d expect some official announcement or mention in the release notes.

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        AjTrek1
        AjTrek1
        Dec 17, 2025 6:08 PM UTC

        Do both subs produce low-end frequencies when playing music? if not then it’s definitely a bug of sorts. If they are both producing low-end it could be that your controller sone how downloaded a feature not yet announced. I’ve seen/experienced this before when something got crossed in the server and I received an update not intended until another release. This happened with Apple not Sonos.

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        Together Everyone Achieves More = T.E.A.M.
          philosopherAuthor
          Contributor I
          Dec 17, 2025 10:08 PM UTC

          Yeap, plays perfectly, trueplay, a proper second sub. I just read on a local forum it has been verified by another user too, so it seems era300 now supports dual subs (it seems it works with Sub4 only, not prev gens)

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            Mr. T
            Mr. T
            Dec 17, 2025 10:29 PM UTC

            A couple of months ago, I vaguely recall a user here adding a Sub and Sub Mini to a stereo pair of Era 300s, but believe they used a 3rd party app for that rather than the Sonos app.

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              Stanley_4
              Stanley_4
              Grand Maestro
              Dec 17, 2025 11:23 PM UTC

              Yeap, plays perfectly, trueplay, a proper second sub. I just read on a local forum it has been verified by another user too, so it seems era300 now supports dual subs (it seems it works with Sub4 only, not prev gens)

              Only 2 Sub 4s or a Sub 4 and an older Sub?

              Still waiting for the app to be available to my system or I'd try it and see.

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              philosopherAuthor
              Contributor I
              Dec 18, 2025 8:15 AM UTC

              Yeap, plays perfectly, trueplay, a proper second sub. I just read on a local forum it has been verified by another user too, so it seems era300 now supports dual subs (it seems it works with Sub4 only, not prev gens)

              Only 2 Sub 4s or a Sub 4 and an older Sub?

              Still waiting for the app to be available to my system or I'd try it and see.

              Dunno about a mix, but two Sub3s don’t work, two Sub4s do.
              And it works for Era100 too!

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