Powerful sound - beautiful design

I have the subwoofer since 2,5Jahren in use and am very satisfied. The design is very elegant and the sound is unbeatable. I operate the subwoofer to about 1/3 of its ways, otherwise the neighbors would regularly "visit". The sound is extremely clear! I used to have a subwoofer in the car and the quality has been abysmal compared to the Sonos subwoofer (I had then felt differently).
I can only guess at this subwoofer. It complements the Sonoslautsprecher perfect in sound and makes a noticeably fuller sound, even at level 3 of the 10th