Sonos Arc Ultra Crackling sound

Update: rebooted the system on Friday, noise returned last night. I tried what ​@Peter_254 did, monitoring now. 

Any updates on this? I got the Ultra Arc for Christmas and immediately started experiencing this issue. Especially on when watching videos on YouTube. I tried everything so far and it comes back.

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.

I contacted Sonos and they had it’s a known issue and that the engineers are working on it. This doesn’t mean anything to me, my wife spent 1k on this and it should work flawlessly. I’m not waiting around for them to “fix it” just returning it.

I have gone through 3 arc ultras in the last month. I even replaced my 3 year old Sony Bravia tv with a brand new Samsung tv and bought two 8k HDMI cables and the popping/cracking happened on all 3 soundbars and the new tv. 

That’s sounds like a lot of effort and money to still have issues.

ANSWER!!!! 

this is poor power delivery. Remember guys you can’t just plug into a wall and expect everything to be OK. For instance if you were to plug it in to say a panorama m8-av-pro, or Even something small like just a regular strip such as the furman SS-6; You will not have issues. Now if it is an issue related to wireless then there’s that but remember some devices like the era 300 and the sub GEN four broadcast their own Sonosnet; But they must be in line of site of the other devices.

That’s all

For what it’s worth, the Era 300 does not generate a SonosNet signal. I suspect the same with the Sub gen 4. They both would connect to your WiFi signal, not SonosNet. And the Sub, likely to a 5Ghz signal generated by the device it is bonded to. 

Both SonosNet and WiFi are radio signals, as such there are certain laws of physics that they are bound by. 

I’d argue that any radio signal can be obscured, obstructed, or subject to forms of wifi interference . The SonosNet system is not a magic bullet. It is extremely useful, when it isn’t affected by outside influences, certainly, but care must be given to making sure there aren’t overlapping channels in use.