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Contributor I
May 3, 2025
Answered

Sonos Gen 3 sub blown after 2 years of light use

I have 2 Sonos Gen 3 subs, one works great, the other developed a rattle with low bass and is blown (sounds like a fart) (which I didn’t think could happen, didn’t have the sub volume up too much, just at (+3). 

Called CS and after tweaking and updating, they agreed it’s defective. The problem is the only solution is to send it back and buy a new one with a 30% discount (but the subs cost $799). So my sub lasted 2 years without any abuse. That is disappointing. Should I buy another sub or is this common?

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johng1920Answer
Contributor I
May 7, 2025

UPDATE: Sonos heard my exemption plea as my blown sub was as it turns out when I researched when I bought it, just 14 months old and have agreed to send me a replacement. So all is well that ends well. 👍

14 replies

Prodigy III
May 3, 2025

Buy another sub. Not common.

johng1920Author
Contributor I
May 3, 2025

Buy another sub. Not common.



‘yep looks like that is my option, I do like having 2 subs in the room, it’s a big room.

johng1920AuthorAnswer
Contributor I
May 7, 2025

UPDATE: Sonos heard my exemption plea as my blown sub was as it turns out when I researched when I bought it, just 14 months old and have agreed to send me a replacement. So all is well that ends well. 👍

AjTrek1
May 8, 2025

UPDATE: Sonos heard my exemption plea as my blown sub was as it turns out when I researched when I bought it, just 14 months old and have agreed to send me a replacement. So all is well that ends well. 👍

Glad you were able to get your sub replaced. However, l’m having trouble understanding your post outside of the fact that your sub will be replaced.

Together Everyone Achieves More = T.E.A.M.
johng1920Author
Contributor I
May 8, 2025

UPDATE: Sonos heard my exemption plea as my blown sub was as it turns out when I researched when I bought it, just 14 months old and have agreed to send me a replacement. So all is well that ends well. 👍

Glad you were able to get your sub replaced. However, l’m having trouble understanding your post outside of the fact that your sub will be replaced.

My sub began to rattle with low bass notes and I came to the conclusion that the speaker was blown. Spoke to Sonos about it and they agreed that it was broken (after trying a few things including rebooting and upgrading). At first they offered a 30% discount on a new sub but after I called them the other day I requested an exemption to the 1 year warranty when I reminded them that the sub was actually only 14 months old. So they have agreed to send a replacement sub.

johng1920Author
Contributor I
May 10, 2025

Received my replacement Gen 3 sub today and integrated it into the system (An Arc and another sub) and after a little tweaking with the settings (at first it wasn’t recognizing the additional sub) it is now added. Nice to have 2 subs once again.

I use this system for tv viewing and the subs don’t really have much to do with normal programming, you really only hear the subs get some boom when a commercial comes on. That’s why I was surprised that one of my subs had a blown speaker. 
 

Sub setting right now is +7. What is the max that is considered safe for these subs? I know they go to +15 but I’m not going that high.

Airgetlam
May 10, 2025

Safe would be one beyond max. Anything from max and below would be fine. 

Bruce
johng1920Author
Contributor I
May 10, 2025

Safe would be one beyond max. Anything from max and below would be fine. 

Thanks, I have heard that the Sonos is designed that you can only push it so far but after having a blown speaker in the sub at +3, I am a little leery.

Airgetlam
May 11, 2025

It’s a digital device, designed for use at potential maximum. It would be odd to sell anything that couldn’t take full amplification, Sonos would likely be liable if they did so. If I were guess, your previous device failed for other reasons. Neither of my gen 2 subs have failed, with years and years of ownership. One of them was definitely an ‘open box’ purchase at Best Buy, I don’t recall if the second one was, but they’re both going strong. 

Bruce
johng1920Author
Contributor I
May 11, 2025

Thanks. I have 2 subs, one is from 2001 going strong but the other failed within the year of 2024 into 2025 by the tell tale sign of a rattle. At first I actually thought something in the room was rattling with a low bass note but upon further investigation when I wasn’t lazy found out that the rattle was internal. Guess it happens, all good now, replacement sub is installed.