I recently noticed that Sonos has improved low-frequency response with a DSP update. I could really hear the positive changes while watching Dune 2. Our goal now is to address the issue where low frequencies generated by the overhead channels aren't being redirected to the soundbar's midwoofer.

 While this isn't a problem for those using a separate sub, it can negatively impact the listening experience for those using the Sonos soundbar as a standalone unit, such as with the bar + Era 100 or bar + Era 300.

https://drive.google.com/file/d/1RWLGzNhMYmZo9dTxqljgpGtiU5NDnXW4/view

The video I've attached shows the kick sound from the overhead channels starting at the 30-second mark. You can hear the low frequencies not being redirected to the soundbar's midwoofer.

 Also, in the case of one of the famous Dolby Atmos demo videos, "Core Universe", you can feel that the mid-woofer of the soundbar is not working at the 41s to 44s part of the video, when the low frequency is output through the overhead channel. (For reference, YouTube does not support Dolby Atmos, so even if you play "Core Universe" on YouTube, it will be played in 5.1 channel, not Dolby Atmos. In other words, overhead channel sound does not work through YouTube, so you should not test it through YouTube. That is also the reason why I cannot upload my test videos to YouTube.)

 If sonos succeed in redirecting the low frequency of the overhead channel sound to the midwoofer of the soundbar, I can guarantee that this will bring about another tremendous improvement in the listening experience. Since you have improved the low frequency response with this DSP update, I see the possibility, so I am reporting it.