Sonos Arc loud pop then audio loss


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I was playing on my Xbox when the arc suddenly made an extremely loud pop sound and then lost audio completely. The app wouldn’t let me adjust the volume and Alexa wake up didn’t emit its usual tone. I had to remove the power from the arc and reapply which resumed the audio. I’m concerned that one of the speakers in the arc may have been damaged when this happened. Has anyone had this issue?

We have had no issues with the arc since purchasing it earlier this year.


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Looking at the thread on the Sonos subreddit, I'm surprised to see so many users who had the bang once or twice and it went away; or who have configurations identical to ours but no problems.

Could this be just specific Arcs malfunctioning? Has anybody had their unit exchanged and the problem came back?

If this were as straightforward as "we need new units", that would blow my mind.

I had a replacement sent to me from Sonos and still the same issue. I’m keeping mine because a) it’s specific to Dolby MAT vs DD+ and b) compared to a HT-A7000 (which I tried as a possible replacement), the Sonos killed it. While disabling Atmos on my Xbox and Apple TV sucks, the bar is fantastic and has a fairly good app experience. When it works, it works.

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Looking at the thread on the Sonos subreddit, I'm surprised to see so many users who had the bang once or twice and it went away; or who have configurations identical to ours but no problems.

Could this be just specific Arcs malfunctioning? Has anybody had their unit exchanged and the problem came back?

If this were as straightforward as "we need new units", that would blow my mind.

I know at least one person in this thread had theirs replaced with the issue remaining.  However, I am starting to think maybe we do have defective units with the data we are getting, and maybe that person got yet another defective unit.  If that is the case I am hoping Sonos will stand by their product and customers and issue replacements without needing legal action.

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Looking at the thread on the Sonos subreddit, I'm surprised to see so many users who had the bang once or twice and it went away; or who have configurations identical to ours but no problems.

Could this be just specific Arcs malfunctioning? Has anybody had their unit exchanged and the problem came back?

If this were as straightforward as "we need new units", that would blow my mind.

@Corry P I think if this issue has not been totally reproduced by SONOS using brand new equipment, maybe it’s a good idea to buyback / replace products that has been reported with issue in this tread and then study / cross check with new equipment.

@ProfessorFrag has a good point, if this issue related to hardware malfunction then we may need new units.

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Presumably Sonos already knows if this is an all Arcs or some Arcs bug. But if they don’t, a more conservative start would be to send a new loaner to one, or maybe a few, users and see if it misbehaves.  

Or perhaps if it’s a CEC bug…..

 

Same popping problem here on Apple TV. Diagnostic code 675505340

I’m having the same issue as OP but on my Gen 2 Beam (with One and One SL as surrounds) connected via eARC through a Samsung QN65Q80A to an Apple TV 4K 2nd Gen.

Every 30 minutes of play or so there is a loud “pop” followed by a beam restart. Only happens with Dolby ATMOS audio.

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Hi @ilh23mx 

As far as I know, there has been progress but I’ve nothing new to share right now. But I can say that we have yet to see evidence that these pops have caused any harm to the hardware. If you do think that a pop has caused harm to your product, please contact support directly to have it looked at. 

One thing to note if you suspect damage - if a speaker has been damaged, you should consistently see failures when attempting to Trueplay the device. Background noise, for example, is still a factor but if damaged, it would fail under perfect conditions.

I hope this helps.

Hi @Corry P,

I am someone who has spent about $10k on Sonos since August 2022 and sold my entire Bose system equivalent. I am starting to think I made the wrong choice…at least on the home theater side. For over 2 years Sonos has ignored this thread just until recently. Don’t you think this is unacceptable? And sharing vague comments about progress also feels like it’s not good progress…can you say if it is either good progress or bad progress? What will Sonos do if they can’t fix the issue with software? I think a 25-26 page thread on your support community is grounds for a class action lawsuit that Sonos probably doesn’t want and neither do we. But we are the suckers here waiting. I feel really really bad for the Sonos owners who have suffered this insanity for the full duration of the issue. Please give us something more…like potential timelines or what Sonos will do if they can’t fix it. We all know you can reproduce this issue at will now. 

You did make the wrong choice as did I.

Userlevel 4
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Looking at the thread on the Sonos subreddit, I'm surprised to see so many users who had the bang once or twice and it went away; or who have configurations identical to ours but no problems.

Could this be just specific Arcs malfunctioning? Has anybody had their unit exchanged and the problem came back?

If this were as straightforward as "we need new units", that would blow my mind.

I had a replacement sent to me from Sonos and still the same issue. I’m keeping mine because a) it’s specific to Dolby MAT vs DD+ and b) compared to a HT-A7000 (which I tried as a possible replacement), the Sonos killed it. While disabling Atmos on my Xbox and Apple TV sucks, the bar is fantastic and has a fairly good app experience. When it works, it works.

 

As I’ve said before this is a Sonos hardware bug that can be recreated with the same parameters 100% of the time. 
Each time I read how we have to turn off the feature that we specifically paid for is infuriating. And the constant naysayers who are likely Sonos affiliated people is underhanded and shows what we the consumer, what kind of company we invested in.

This is a 2 year going to be 3 year issue. There is Zero excuse and Sonos is Fully aware of this issue. They have contracts with their manufacturers. This is just business. I’ve worked for large corporations in the past that release faulty hardware and software due to contracts with manufacturers and retailers.

It is far more profitable to have the likelihood of poor individuals who made the choice to plug in an Xbox Series X that DOES cause permanent damage to the Sonos Arc, rendering it completely incapable of playing Dolby Atmos and Dolby Vision content concurrently from any source. 
 

An issue that did not appear for years prior to plugging in a Sonos Arc.

This is my 3rd Arc. I unfortunately recommended the Sonos Arc to my father who currently has zero issues because I was able to warn him not to plug in an Xbox Series X that my younger half brother has.

Something we all could have benefited from bad we been given notice. Enough with the Sonos isn’t the issue nonsense.

2 of my Arcs now have this issue. Because I like so many of you thought, this might be a singular issue. As there were two releases of the Arc, one with the more expensive packaging and then the “streamlined” “uniform” box aka cheaper packaged one.

This is NOT specific to certain Sonos Arcs. This IS an issue that occurs to ALL Sonos Arcs. Considering the far fewer sales of the Xbox Series X, this is why there hasn’t been more reports than the many that already exist for over two years now.

One final note, this issue has never happened with my PS5 playing on the Sonos Arc. Which I had over a year before I got an Xbox Series X.

 

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Presumably Sonos already knows if this is an all Arcs or some Arcs bug. But if they don’t, a more conservative start would be to send a new loaner to one, or maybe a few, users and see if it misbehaves.  

It is not a presumption. They are aware. Every post on this thread, (which is now over two years old) that features someone like yourself who has contacted the Sonos support team, and the now standard answer of “turn off Dolby Atmos” the very feature you paid over $1000 for, turn it off and that will solve the problem.

All tech companies be they hardware or software are aware of issues. Especially after it’s been over two years.

There is no doubt on this. 

Userlevel 3
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Looking at the thread on the Sonos subreddit, I'm surprised to see so many users who had the bang once or twice and it went away; or who have configurations identical to ours but no problems.

Could this be just specific Arcs malfunctioning? Has anybody had their unit exchanged and the problem came back?

If this were as straightforward as "we need new units", that would blow my mind.

I had a replacement sent to me from Sonos and still the same issue. I’m keeping mine because a) it’s specific to Dolby MAT vs DD+ and b) compared to a HT-A7000 (which I tried as a possible replacement), the Sonos killed it. While disabling Atmos on my Xbox and Apple TV sucks, the bar is fantastic and has a fairly good app experience. When it works, it works.

 

As I’ve said before this is a Sonos hardware bug that can be recreated with the same parameters 100% of the time. 
Each time I read how we have to turn off the feature that we specifically paid for is infuriating. And the constant naysayers who are likely Sonos affiliated people is underhanded and shows what we the consumer, what kind of company we invested in.

This is a 2 year going to be 3 year issue. There is Zero excuse and Sonos is Fully aware of this issue. They have contracts with their manufacturers. This is just business. I’ve worked for large corporations in the past that release faulty hardware and software due to contracts with manufacturers and retailers.

It is far more profitable to have the likelihood of poor individuals who made the choice to plug in an Xbox Series X that DOES cause permanent damage to the Sonos Arc, rendering it completely incapable of playing Dolby Atmos and Dolby Vision content concurrently from any source. 
 

An issue that did not appear for years prior to plugging in a Sonos Arc.

This is my 3rd Arc. I unfortunately recommended the Sonos Arc to my father who currently has zero issues because I was able to warn him not to plug in an Xbox Series X that my younger half brother has.

Something we all could have benefited from bad we been given notice. Enough with the Sonos isn’t the issue nonsense.

2 of my Arcs now have this issue. Because I like so many of you thought, this might be a singular issue. As there were two releases of the Arc, one with the more expensive packaging and then the “streamlined” “uniform” box aka cheaper packaged one.

This is NOT specific to certain Sonos Arcs. This IS an issue that occurs to ALL Sonos Arcs. Considering the far fewer sales of the Xbox Series X, this is why there hasn’t been more reports than the many that already exist for over two years now.

One final note, this issue has never happened with my PS5 playing on the Sonos Arc. Which I had over a year before I got an Xbox Series X.

 

I still argue against your theory regarding XSX but something did change.

As I’ve said before, like you, I had period where the Arc worked fine with Atmos.  Since I purchased in Dec 2020, up until around September 2021, I had no issues.  Again, during this time, the Bravia X90H line, and Apple TV, and the Sonos Arc all had major OS updates.  One of which most certainly introduced the issue.  No change in my hardware configuration, no connected devices or cables changed or swapped.  Just one day… BANG.

I’d be interested to know if you purchased an XSX around September/October 2021.

Userlevel 3
Badge +2

Looking at the thread on the Sonos subreddit, I'm surprised to see so many users who had the bang once or twice and it went away; or who have configurations identical to ours but no problems.

Could this be just specific Arcs malfunctioning? Has anybody had their unit exchanged and the problem came back?

If this were as straightforward as "we need new units", that would blow my mind.

I had a replacement sent to me from Sonos and still the same issue. I’m keeping mine because a) it’s specific to Dolby MAT vs DD+ and b) compared to a HT-A7000 (which I tried as a possible replacement), the Sonos killed it. While disabling Atmos on my Xbox and Apple TV sucks, the bar is fantastic and has a fairly good app experience. When it works, it works.

 

As I’ve said before this is a Sonos hardware bug that can be recreated with the same parameters 100% of the time. 
Each time I read how we have to turn off the feature that we specifically paid for is infuriating. And the constant naysayers who are likely Sonos affiliated people is underhanded and shows what we the consumer, what kind of company we invested in.

This is a 2 year going to be 3 year issue. There is Zero excuse and Sonos is Fully aware of this issue. They have contracts with their manufacturers. This is just business. I’ve worked for large corporations in the past that release faulty hardware and software due to contracts with manufacturers and retailers.

It is far more profitable to have the likelihood of poor individuals who made the choice to plug in an Xbox Series X that DOES cause permanent damage to the Sonos Arc, rendering it completely incapable of playing Dolby Atmos and Dolby Vision content concurrently from any source. 
 

An issue that did not appear for years prior to plugging in a Sonos Arc.

This is my 3rd Arc. I unfortunately recommended the Sonos Arc to my father who currently has zero issues because I was able to warn him not to plug in an Xbox Series X that my younger half brother has.

Something we all could have benefited from bad we been given notice. Enough with the Sonos isn’t the issue nonsense.

2 of my Arcs now have this issue. Because I like so many of you thought, this might be a singular issue. As there were two releases of the Arc, one with the more expensive packaging and then the “streamlined” “uniform” box aka cheaper packaged one.

This is NOT specific to certain Sonos Arcs. This IS an issue that occurs to ALL Sonos Arcs. Considering the far fewer sales of the Xbox Series X, this is why there hasn’t been more reports than the many that already exist for over two years now.

One final note, this issue has never happened with my PS5 playing on the Sonos Arc. Which I had over a year before I got an Xbox Series X.

 

I still argue against your theory regarding XSX but something did change.

As I’ve said before, like you, I had period where the Arc worked fine with Atmos.  Since I purchased in Dec 2020, up until around September 2021, I had no issues.  Again, during this time, the Bravia X90H line, and Apple TV, and the Sonos Arc all had major OS updates.  One of which most certainly introduced the issue.  No change in my hardware configuration, no connected devices or cables changed or swapped.  Just one day… BANG.

I’d be interested to know if you purchased an XSX around September/October 2021.


I have used my Series X with my Arc for 8 months before I heard my first and so far only pop. I don’t know what changed in those 8 months but I don’t necessarily blame Xbox 

Userlevel 4
Badge +2

Looking at the thread on the Sonos subreddit, I'm surprised to see so many users who had the bang once or twice and it went away; or who have configurations identical to ours but no problems.

Could this be just specific Arcs malfunctioning? Has anybody had their unit exchanged and the problem came back?

If this were as straightforward as "we need new units", that would blow my mind.

I had a replacement sent to me from Sonos and still the same issue. I’m keeping mine because a) it’s specific to Dolby MAT vs DD+ and b) compared to a HT-A7000 (which I tried as a possible replacement), the Sonos killed it. While disabling Atmos on my Xbox and Apple TV sucks, the bar is fantastic and has a fairly good app experience. When it works, it works.

 

As I’ve said before this is a Sonos hardware bug that can be recreated with the same parameters 100% of the time. 
Each time I read how we have to turn off the feature that we specifically paid for is infuriating. And the constant naysayers who are likely Sonos affiliated people is underhanded and shows what we the consumer, what kind of company we invested in.

This is a 2 year going to be 3 year issue. There is Zero excuse and Sonos is Fully aware of this issue. They have contracts with their manufacturers. This is just business. I’ve worked for large corporations in the past that release faulty hardware and software due to contracts with manufacturers and retailers.

It is far more profitable to have the likelihood of poor individuals who made the choice to plug in an Xbox Series X that DOES cause permanent damage to the Sonos Arc, rendering it completely incapable of playing Dolby Atmos and Dolby Vision content concurrently from any source. 
 

An issue that did not appear for years prior to plugging in a Sonos Arc.

This is my 3rd Arc. I unfortunately recommended the Sonos Arc to my father who currently has zero issues because I was able to warn him not to plug in an Xbox Series X that my younger half brother has.

Something we all could have benefited from bad we been given notice. Enough with the Sonos isn’t the issue nonsense.

2 of my Arcs now have this issue. Because I like so many of you thought, this might be a singular issue. As there were two releases of the Arc, one with the more expensive packaging and then the “streamlined” “uniform” box aka cheaper packaged one.

This is NOT specific to certain Sonos Arcs. This IS an issue that occurs to ALL Sonos Arcs. Considering the far fewer sales of the Xbox Series X, this is why there hasn’t been more reports than the many that already exist for over two years now.

One final note, this issue has never happened with my PS5 playing on the Sonos Arc. Which I had over a year before I got an Xbox Series X.

 

I still argue against your theory regarding XSX but something did change.

As I’ve said before, like you, I had period where the Arc worked fine with Atmos.  Since I purchased in Dec 2020, up until around September 2021, I had no issues.  Again, during this time, the Bravia X90H line, and Apple TV, and the Sonos Arc all had major OS updates.  One of which most certainly introduced the issue.  No change in my hardware configuration, no connected devices or cables changed or swapped.  Just one day… BANG.

I’d be interested to know if you purchased an XSX around September/October 2021.

I’ve said this 3 times before now. This is the last time. Please read the thread. When I mention the Xbox Series X it is a 100% reproducible way to recreate the bug/issue 100% of the time. 
 

There is NO argument. I have clearly stated. For those that are having issues that are NOT related to Xbox Series, I am NOT saying that the issue is ONLY if you plug in an Xbox Series X. I’m saying that if you have your specific issue that is caused by some other method. Ok I believe you. Again this is a SONOS issue.

I have never said that all other causes are invalid. For any future posts that only clog up this thread with statements or answers that have already been addressed I simply won’t answer them. And no I purchased my Xbox Series X in October of 2022. Something I regret to this day.

Userlevel 4
Badge +2

Looking at the thread on the Sonos subreddit, I'm surprised to see so many users who had the bang once or twice and it went away; or who have configurations identical to ours but no problems.

Could this be just specific Arcs malfunctioning? Has anybody had their unit exchanged and the problem came back?

If this were as straightforward as "we need new units", that would blow my mind.

I had a replacement sent to me from Sonos and still the same issue. I’m keeping mine because a) it’s specific to Dolby MAT vs DD+ and b) compared to a HT-A7000 (which I tried as a possible replacement), the Sonos killed it. While disabling Atmos on my Xbox and Apple TV sucks, the bar is fantastic and has a fairly good app experience. When it works, it works.

 

As I’ve said before this is a Sonos hardware bug that can be recreated with the same parameters 100% of the time. 
Each time I read how we have to turn off the feature that we specifically paid for is infuriating. And the constant naysayers who are likely Sonos affiliated people is underhanded and shows what we the consumer, what kind of company we invested in.

This is a 2 year going to be 3 year issue. There is Zero excuse and Sonos is Fully aware of this issue. They have contracts with their manufacturers. This is just business. I’ve worked for large corporations in the past that release faulty hardware and software due to contracts with manufacturers and retailers.

It is far more profitable to have the likelihood of poor individuals who made the choice to plug in an Xbox Series X that DOES cause permanent damage to the Sonos Arc, rendering it completely incapable of playing Dolby Atmos and Dolby Vision content concurrently from any source. 
 

An issue that did not appear for years prior to plugging in a Sonos Arc.

This is my 3rd Arc. I unfortunately recommended the Sonos Arc to my father who currently has zero issues because I was able to warn him not to plug in an Xbox Series X that my younger half brother has.

Something we all could have benefited from bad we been given notice. Enough with the Sonos isn’t the issue nonsense.

2 of my Arcs now have this issue. Because I like so many of you thought, this might be a singular issue. As there were two releases of the Arc, one with the more expensive packaging and then the “streamlined” “uniform” box aka cheaper packaged one.

This is NOT specific to certain Sonos Arcs. This IS an issue that occurs to ALL Sonos Arcs. Considering the far fewer sales of the Xbox Series X, this is why there hasn’t been more reports than the many that already exist for over two years now.

One final note, this issue has never happened with my PS5 playing on the Sonos Arc. Which I had over a year before I got an Xbox Series X.

 

I still argue against your theory regarding XSX but something did change.

As I’ve said before, like you, I had period where the Arc worked fine with Atmos.  Since I purchased in Dec 2020, up until around September 2021, I had no issues.  Again, during this time, the Bravia X90H line, and Apple TV, and the Sonos Arc all had major OS updates.  One of which most certainly introduced the issue.  No change in my hardware configuration, no connected devices or cables changed or swapped.  Just one day… BANG.

I’d be interested to know if you purchased an XSX around September/October 2021.


I have used my Series X with my Arc for 8 months before I heard my first and so far only pop. I don’t know what changed in those 8 months but I don’t necessarily blame Xbox 

I’m not blaming Microsoft, there is no issue of blame. It is about causalities and factors that can reproduce a bug. So that Sonos can try to find a fix or workaround. 
 

As I’ve said before at this point, Sonos will most likely come out with the Arc 2, which may not have this issue going forward. Playing ur Xbox Series X, there a specific factors that come into play. What game settings did you have, what game features did the game have. Specifically Dolby Vision and Atmos features playing concurrently. Not all games especially in the last 8 months have these “next gen” features. 
 

PS5 didn’t have VRR for over a year when it was released  back in 2020. The point is, of course it’s not Microsoft’s fault for having a console that when playing specific software parameters causes a faulty product like the Sonos Arc to have issues.

The responsibility lies with Sonos to test their products when issues appear to maintain a standard and quality that their company advertises.

My next sound system will not be Sonos. And it will take a lot before I consider or ever recommend their products again, after everything I’ve read, on multiple message boards and threads like this one. And the experience I’ve had with their products.

Like many of you, I fell for the advertising and hype that Sonos successfully executed with their brilliant campaign for the Sonos Arc.

I was far too trusting and not as discerning as I was in my youth. Going forward, I will now wait at least a year and a half before investing in a system’s release.

The Sony HT A9 is my current possible replacement choice if not for lacking a dedicated center channel speaker.

 

 

PS5, have the same issue.  Have Arc, 2 Subs, 2 Fives, 2 Ones, 2 OneSL and a move, all within the 45 day window, probably get my 4k+ back, this is so bad and makes using the system not enjoyable.  

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PS5, have the same issue.  Have Arc, 2 Subs, 2 Fives, 2 Ones, 2 OneSL and a move, all within the 45 day window, probably get my 4k+ back, this is so bad and makes using the system not enjoyable.  

That’s a shame another new victim, it didn’t happen for me with my PS5 until after my Xbox Series X was plugged in, now it happens with any source including PS5  which I had for over a year and a half before my Xbox Series X, playing Dolby Atmos content with no problems.

Thankfully you still have your window. You should warn your retailer when you take it back. My 6k+ is gone. I can’t even sell my systems second hand with good conscience to anyone. I wouldn’t even give it away. It’s like giving someone a broken toaster.

 

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PS5, have the same issue.  Have Arc, 2 Subs, 2 Fives, 2 Ones, 2 OneSL and a move, all within the 45 day window, probably get my 4k+ back, this is so bad and makes using the system not enjoyable.  

This is do find surprising — as the PS5 isn’t Atmos enabled.  It does support bitmapped Atmos from Blu-Rays, but this is normally encoded as TrueHD, not MAT so shouldn’t be an issue…

PS5, have the same issue.  Have Arc, 2 Subs, 2 Fives, 2 Ones, 2 OneSL and a move, all within the 45 day window, probably get my 4k+ back, this is so bad and makes using the system not enjoyable.  

This is do find surprising — as the PS5 isn’t Atmos enabled.  It does support bitmapped Atmos from Blu-Rays, but this is normally encoded as TrueHD, not MAT so shouldn’t be an issue…

Really weird, happened last night playing a game, (NHL23) would come on when I wasn’t actually in a hockey game, when character was in locker room or not in the actual game, sound came back on, as soon as the game went to an actual game…happened, every time. 

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PS5, have the same issue.  Have Arc, 2 Subs, 2 Fives, 2 Ones, 2 OneSL and a move, all within the 45 day window, probably get my 4k+ back, this is so bad and makes using the system not enjoyable.  

This is do find surprising — as the PS5 isn’t Atmos enabled.  It does support bitmapped Atmos from Blu-Rays, but this is normally encoded as TrueHD, not MAT so shouldn’t be an issue…

Really weird, happened last night playing a game, (NHL23) would come on when I wasn’t actually in a hockey game, when character was in locker room or not in the actual game, sound came back on, as soon as the game went to an actual game…happened, every time. 

Considering you purchased your Sonos Arc recently, perhaps the “recent” models have cheaper components inside to cut manufacturing costs. As I’ve said in a previous posts this is all speculation and not the point.  We all have a defective product, if you have the opportunity to return it, I would take it back. I wish I could.

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The question is not if you will be sued, but when!

 

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I've had a few instances of the sound popping and then my system restarting on a Beam Gen 2 with sub and surrounds set up. I got in touch with Sonos at the start of January who advised to factory reset everything which I did but it was a massive headache doing so.

 

Yesterday the issue happened again, so I got in touch with customer support via the chat and they have confirmed that the issue is well known for the Arc but as it's not typical of the Beam they have been able to arrange a replacement.

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I've had a few instances of the sound popping and then my system restarting on a Beam Gen 2 with sub and surrounds set up. I got in touch with Sonos at the start of January who advised to factory reset everything which I did but it was a massive headache doing so.

 

Yesterday the issue happened again, so I got in touch with customer support via the chat and they have confirmed that the issue is well known for the Arc but as it's not typical of the Beam they have been able to arrange a replacement.

That’s very interesting. Let us know if getting new hardware has fixed the problem. What’s your setup? Apple TV? Xbox? I find listening to a Spatial Audio playlist in Apple Music on Apple TV to be a reliable trigger for the pop. But of course, that’s after it happened for the first time. When I first got Sonos Arc, Atmos worked for a while before the Arc started malfunctioning. 

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I've had a few instances of the sound popping and then my system restarting on a Beam Gen 2 with sub and surrounds set up. I got in touch with Sonos at the start of January who advised to factory reset everything which I did but it was a massive headache doing so.

 

Yesterday the issue happened again, so I got in touch with customer support via the chat and they have confirmed that the issue is well known for the Arc but as it's not typical of the Beam they have been able to arrange a replacement.

That’s very interesting. Let us know if getting new hardware has fixed the problem. What’s your setup? Apple TV? Xbox? I find listening to a Spatial Audio playlist in Apple Music on Apple TV to be a reliable trigger for the pop. But of course, that’s after it happened for the first time. When I first got Sonos Arc, Atmos worked for a while before the Arc started malfunctioning. 

 

Will do! My set up is an Xbox Series X with Atmos enabled but I've noticed the pop on Atmos soundtracks on Netflix too, granted it's few and far between.

The advisor on the chat did say it's a known problem with Arc sound bars and to use 5.1 instead, until I made a point that I bought a Beam Gen 2 purely for Atmos. Because they didn't recognise it as a Beam issue they agreed to replace it.

 

I should have the replacement in the next 3-7 days so I'll keep you all updated.

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You know, I can’t help but think that if it’s a known issue, ethically, Sonos should put a warning on the product page. Or maybe mention the malfunction in an FAQ.

Right now we keep having new customers that have to go through all these steps to figure out what’s even going wrong.

I have the same issue with my ATV 4K (1st gen) + Samsung QE65Q90 (trough eARC). My sonos setup is Arc, 2xOneSL and the Sub. Got this specifically for Dolby Atmos. Experience 4-5 sound cut outs during every single dolby atmos movie.

Bought my Arc in march 2021, and did not have this issue until iOS update 15-16 (do not remember exactly which one). Have been waiting for Sonos to release a fix for about a year. Reading this thread it seems we are not even getting close.
 

The setup set me back around 20 k. Nice to see Sonos giving a damn about their costumers…

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