Keep rodents and toys out of your Sonos subwoofer. Most people don't know that there are two ports inside the opening of the subwoofer.
These are our own design, they fit snugly and are made from PETG instead of typical PLA material . If you use your subwoofer outdoors (on occasion) they are more impervious to heat and moisture. Or matrix pattern allows more air to pass through limiting noise generated from air pushing in and out of the subwoofer..
