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Renowned Enthusiast I
April 16, 2026
Answered

Replacing Sonos One surrounds with Era 100 setup question

Hi,

I currently have the Sonos Arc Ultra, Sub Mini, and 2 x One.

I’m planning to replace the 2 x One with 2 x Era 100.

Is it enough to just remove the current surrounds and add the new ones in the app?

Or is it better to re-pair the Arc + Sub + Era 100 from scratch? I’m wondering if anything from the previous sound profile might still be linked.

Thanks!

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MoPac
MoPacAnswer
Headliner III
April 16, 2026

Just remove the One speakers then add the 100s.  Run Trueplay when you’re done.

16 replies

MoPac
MoPacAnswer
Headliner III
April 16, 2026

Just remove the One speakers then add the 100s.  Run Trueplay when you’re done.

106rallye
April 16, 2026

Do you expect a big advantage in using Era 100’s?

Stanley_4
Grand Maestro
April 16, 2026

I did a Play 1 to Era-100 swap a while back. Not a lot of difference as 5.1 TV surrounds or in ambient music mode, seemed a bit better in full mode music. Didn't test with an Atmos source though.

I found adding the Eras, with useful temporary Room names and giving the old surrounds useful names once removed reduced my confusion level. Not essential, just handy.

melvimbe
April 16, 2026

I saw someone on reddit recently claim that switching from Sonos One’s to Era 100s made a huge difference.  However, I don’t know that you can really make a good comparison between the 2 setups unless you ensure all the configs are identical, trueplay turned off, and source identical.   It’s entirely possible that the users previous trueplay tuning just wasn’t that good (ad the new one is significantly more to your liking. While the Era 100 does have the additional tweeter, I don’t think surround setups take advantage of that in any way.

Danny
Stanley_4
Grand Maestro
April 16, 2026

I really should have done an A/B/C test between the Play 1, One SL and Era-100 when I had them all, but my ears just aren't good enough to report reliable testing results.

kdowling
April 16, 2026

I replaced OneSLs with Era 100s and didn’t notice a big difference. But then, my ears are probably as reliable as Stanley_4’s. :)

AjTrek1
April 16, 2026

I can’t argue the point with any certainty as I no longer have  a Sonos One. That said the angled Tweeters in the Era 100 may offer a slight improvement even in surround mode. Top pic is Era 100.

 

Together Everyone Achieves More = T.E.A.M.
kdowling
April 16, 2026

They definitely sounded better. Just not a “big” difference as surrounds. Didn’t listen to them otherwise.

MoPac
Headliner III
April 16, 2026

If you listen to any Dolby Atmos music save your bucks and get the ERA 300 pair.

Stanley_4
Grand Maestro
April 16, 2026

The Era-300s are great but only if you can position them close to properly, my 100s sound better than the 300s in the locations I had to put them.