Sonos - There's always room for more bass. Set the SUB up anywhere in the room, even lying flat under a couch. (#SonosAtHome image via http://bit.ly/2aSPbwU) | Facebook
Sonos SUB Review: This wireless sub gives a Sonos system some serious power - Home Entertainment - Home Theatre - Good Gear Guide
![Sonos Sub (Gen 3) (Black) Wireless subwoofer for compatible Sonos speakers and components at Crutchfield Sonos Sub (Gen 3) (Black) Wireless subwoofer for compatible Sonos speakers and components at Crutchfield](https://images.crutchfieldonline.com/ImageHandler/trim/750/457/products/2020/17/616/g616SUB3BK-M.jpg)