Contributor I

Answered

Arc Ultra distortion in high notes

Forum|Forum|10 months ago
November 29, 2025
7 replies
277 views

Hello everyone,

I received a new Arc Ultra yesterday, and after setting it up, I hear a crackling sound in the high frequencies, particularly with piano music but also with some voices in movies. It's not just necessarily harsh (which might be down to my interpretation) but there's also a kind of crackle mixed in, instead of the tones being pure.

Is this a known issue? I can't find anything about it on this forum and I'd like to do some troubleshooting before I call Sonos directly.

Cheers!

Sonos Arc Ultra

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Best answer by Stanley_4

Not a lot you can do, unplug it for a minute and see if it clears up. Unlikely a factory reset would help.

Get the odd noise, submit a diagnostic and then call Sonos support.

Stanley_4Answer

Grand Maestro

Not a lot you can do, unplug it for a minute and see if it clears up. Unlikely a factory reset would help.

Get the odd noise, submit a diagnostic and then call Sonos support.

Not a lot you can do, unplug it for a minute and see if it clears up. Unlikely a factory reset would help.

Get the odd noise, submit a diagnostic and then call Sonos support.

Also, submit the diagnostic within 10 minutes of the occurrence.

Together Everyone Achieves More = T.E.A.M.

Lyricist I

I received my arc ultra yesterday and I have the same issue. I noticed it in Netflix Dolby Atmos content.

Grand Maestro

I received my arc ultra yesterday and I have the same issue. I noticed it in Netflix Dolby Atmos content.

Whamt did Sonos support say? Are they replacing it?

VLHAuthor

Contributor I

I received my arc ultra yesterday and I have the same issue. I noticed it in Netflix Dolby Atmos content.

Whamt did Sonos support say? Are they replacing it?

I contacted the store and they will replace it when a new shipment arrives.

Grand Maestro

Thanks, if a replacement is the answer folks can just ask for that and save a bunch of troubleshooting.

Lyricist II

I ended up replacing mine—thank you Costco—no issues so far