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The ArC SL is producing echoesi,occasionally when watching movies, and also during commercial breaks specifically when watching the Peacock streaming network. I have two 1’s and a sub connected to the system. Even when I turn off the 1’s and sub I still hear the echo from the soundbar. 

That’s certainly odd, as all Sonos speakers, including the Arc SL, are supposed to play what is handed to them, in this case by your TV set vis ARC. I’d try several things to try and fix this. 

First, I’d double check the TV for updates, and apply them. Then I’d reboot the source (cable box?) of the Peacock network. Then I’d reboot the TV (which might be the source, it’s not clear), by unplugging it from the wall for two minutes. While the TV is unplugged, I’d reboot the Sonos by power cycling them before I plugged back in the TV. 

This is all speculative, but certainly won’t cause harm. If you’re still experiencing difficulty, I would recommend that you submit a system diagnostic within 10 minutes of experiencing this problem, and call Sonos Support to discuss it. But don’t post the resulting diagnostic number here, they get sensitive about GDPR.

There may be information included in the diagnostic that will help Sonos pinpoint the issue and help you find a solution.

When you speak directly to the Support staff, they have tools at their disposal that will allow them to give you advice specific to your network and Sonos system.


Thanks for the message. I think I figured it out. The echoes are only happening when I stream via my Fire Cube. If I access the application via the app installed on the TV directly, it’s loud and clear. It still is odd but at least I have a current solution. 


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