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Contributor I
January 27, 2024
Answered

stereo pair out of balance

I have a one and a one sl which I have set up as a stereo pair but the left speaker is louder. 
 

I have tried turning them off and back on, in pairing them, re tuning and yes the left is noticeably louder. 
 

all driver sound like they are working. One is brand new the other a couple of years old. 
 

at a loss now. I have a stereo pair of era 100’s which are in balance. 
 

any other suggestions?

 

thank you 

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Ken_Griffiths
January 27, 2024

It maybe best to undertake playback and try toggling/adjusting both Trueplay and EQ settings and then if still no joy, having unpaired/paired the devices, perhaps immediately submit a Sonos system diagnostic report from within the Sonos App, note it’s reference and then contact/chat with Sonos Support Staff via this LINK and see what the Staff can perhaps suggest to resolve the matter. 

They may go onto advise a factory reset of one, or both speakers, (doing just one speaker at a time and adding it back to the system before doing the next speaker) but before doing those tasks, I would speak to Sonos Support Staff first.

17 replies

Senior Virtuoso
January 28, 2024

I think I’d try deleting the app from your phone and then reloading it. Also check all speakers are on latest system update. Or hold off and see if Sonos see anything in the diagnostics report. 

Schlumpf
Virtuoso
January 28, 2024

I have also done that and sure enough the one is still louder. 

So if you have done a reset to both speakers, both are on latest firmware, both set up as a single device room, both trueplay off, eq and loudness settings the same and the One SL isn’t as loud as the One, I would assume a hardware issue. 
Maybe Sonos support can see the real amp power in a diagnosis. 
Please call them and do some investigation. 

Ralf
Contributor I
January 28, 2024

Sonos are sending me a replacement as they can’t fix it. A search online reveals others have experienced this so what are the chances this is going to work?

Schlumpf
Virtuoso
January 28, 2024

Sonos are sending me a replacement as they can’t fix it. A search online reveals others have experienced this so what are the chances this is going to work?

Imho the chances are quite high that you will be satisfied with the replacement. The One and One SL are some of the most sold Sonos products and I don’t know the number of pruduced items in detail, but in relation to the few ones being affected by such a hardware issue there’s a very high quality standard I think. 

Ralf
Contributor I
January 30, 2024

I can’t remember what the Sonos rep said now about how the return works, do they wait for it to be received before sending a replacement?

Schlumpf
Virtuoso
January 30, 2024

I can’t remember what the Sonos rep said now about how the return works, do they wait for it to be received before sending a replacement?

Depends on whether you have added a credit card as payment method for your account or not. If so, the replacement will be shipped as soon as possible. Otherwise Sonos will wait until your device arrived.

You should got emails from Sonos with instructions how the replacement works and with shipping return label instructions. 

Ralf
Contributor I
February 9, 2024

Replacement received today, and same issue. The one SL is quieter than the one. Maybe they shouldn’t be paired? Have tried trueplay on and off and no different. To get equal sound I have to move the slider to +5 towards the one SL. 
 

What do I do from here?