Pop sound from sub two minutes after off

12 replies
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I re-write because the first post gives a “page not found”.

My configuration is: two stero Five’s + sub. Five’s are new; sub is a gen 2 refurbished, bought on Sonos website in december ‘21.

Sub works correctly, but 2 minutes after turning off music reproduction, you can hear one single soft “pop”. This happens also if the sub is off (green flashing liight).

Is it normal?

Diagnostic number is 1879570162.

Thanx!

Sonos Sub

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Ken_GriffithsAnswer

I’ve received my first Sub (Gen 3, A202 build) in the past few days, now paired with two Sonos Ones (Gen 2). I also noticed the soft pop sound when the Sub becomes active from standby and thought the sound was a bit odd because I previously never heard any startup sounds/pop sounds from my stereo Sonos One’s without Sub. Overall sound quality of the Sub that I have is good, aside from this pop point.

I’m not an expert in amplifiers but from reading other audio forums online, I’ve seen it mentioned that modern, premium amplifiers often have a soft-start feature to prevent the pop sound when they are being powered up. This makes me wonder have corners been cut in the Sonos Sub resulting in the pop sound, or is there a technical reason this particular subwoofer amplifier design has to have a pop sound when becoming active? I’ve also read in this Sonos forum that other people are not hearing any startup pop from their Sub so I’m wondering if certain batches of the Sub have cheaper components without the soft-start feature, which results in the pop.

These are ‘perhaps’ questions you might want ask of Sonos Support Staff. I’m not sure anyone can comment on different batches of Sub and/or different components, plus if you are concerned by the sound and are able to capture the issue with a video/audio recording and/or submit a system diagnostic report (noting it’s reference), then I guess the Staff should then be able to comment further on the issue and say if your Sub is working ‘as designed’.

Here is a link if you do wish to take the matter further and to speak with them:

https://support.sonos.com/s/contact

Hope that assists.

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AlfredD

Lyricist I

My unit was made in October 2022. Have been in contact with the support and tried to record the pop sound, but I wasn’t able to pick up the sound with my phone even though I can hear it from 3 meters away.

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Audiohorizon

Contributor I

My unit was made in October 2022. Have been in contact with the support and tried to record the pop sound, but I wasn’t able to pick up the sound with my phone even though I can hear it from 3 meters away.

OK, that was manufactured later than the unit I received (mine was manufactured May 2022), so the issue must still be affecting newer units, which I find odd these issues haven’t been resolved in newer units by now. If you are not willing to live with the issue, I would recommend to return for a refund if you are still inside the return window. I expect there won’t be anything that Sonos support will be able to do to fix the issue if it’s hardware related.

I see Sonos has recently increased the price of Sub Gen 3 again to 899 Euros in Ireland 😲 Not great to see price increases when there are clearly ongoing quality issues.

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