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Help with One SL Stereo Pair L-R Balance

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Hi, thanks in advance for any help you can provide with this issue.

I have a stereo pair of One SL’s on my desk. I’m having an issue with the stereo balance between the two speakers. When I start a song playing, the stereo balance is centered, but over approximately 15-30 seconds, the center image drifts off to one side (one speaker is becoming louder or softer, but never drifting all the way to one side). When I pause the music, then start it again, the image is again centered but proceeds to drift off center again. What is perplexing is that this happens when using the Sonos app streaming any music service, it happens with Roon streaming Tidal or Qobuz, it happens with the Tidal app using Tidal Connect, but it does not happen when streaming via Airplay from any source. Here are the steps I’ve already taken to attempt to resolve the issue:

Rebooted both speakers. Unpaired, then re-paired the stereo pair. Swapped left and right speakers in the stereo pair. Rebooted my wifi router while also rebooting both speakers afterwards. None of these steps changed anything. One thing I did notice is that it seems the stereo image always drifts to the slave speaker, not the primary.

Has anyone else experienced this, and if so, what worked for you? Any suggestions would be greatly appreciated!

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Ken_GriffithsAnswer

It seems to me you have already tried most of the troubleshooting steps, apart from an actual factory reset of each device, but before suggesting to try that, it might be best to first submit a system diagnostic report immediately after you next encounter the issue and make a note of its reference. Then contact/chat to the Sonos Support Staff via this LINK, to perhaps see if they can glean anything from your report.

If you do decide to go it alone and factory reset your devices, then ensure you only do one speaker at a time and get that speaker added back to your existing system and working, before resetting the other one.

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J

John B

Hello,

I’m currently testing with Spotify connect, and I don’t have any issue.

So, it looks like the problem is present when the Sonos app is used to stream.

More useful info - thanks.

Have you had a chance to try a paired One and One SL yet, using the Sonos app to initiate play?

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acbarnAuthor

Trending Lyricist I

Hello,

I’m currently testing with Spotify connect, and I don’t have any issue.

So, it looks like the problem is present when the Sonos app is used to stream.

I need to test this again because I recall the issue being present with Spotify connect. I also tested with the Qobuz and Tidal apps, and both services streaming through Roon, with all having the same issue. I’ll report back on Spotify connect.

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acbarnAuthor

Trending Lyricist I

Hi,

I tested Spotify connect and for me it’s drifting to the side just like the others. I also went back and double checked Tidal, Qobuz, and Roon, same problem with those. Still, for me, Airplay is the only method working properly without the drift.

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acbarnAuthor

Trending Lyricist I

OK, so I spoke with Sonos support again today. It sounds like my case is going to be referred to engineering/IT. The tech said it sounds like firmware, but only guessing. They’ll let me know, but I may end up sending my speakers in if they can’t recreate the issue on their end.

In the meantime, my Play:1s are back on my desk and the faulty One SLs will take up temporary residence as rears to a Beam in my little bedroom TV system.

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