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I’ve had the Arc for over a year and not had this problem until this week. I play a particular track on Apple Music, through an Apple TV, on my Arc and I get a distortion when the music and singer hit a certain volume. It’s an album I’ve “added” to Apple Music (I have the iTunes Match service) but it encoded correctly. 

I’ve played this same track on my Sonos One in the kitchen - no distortion. 

Tried a couple of tracks from other albums I’ve recently added - same issue. Music directly from Apple Music seem okay. 


Any ideas ? 

If the other music is OK, I’d suspect an issue with the music, and not the Sonos Arc. But just in case, especially as it doesn’t happen on the Sonos One, I would submit a system diagnostic within 10 minutes of experiencing this problem, and call Sonos Support to discuss it.

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.