Pulse-pounding bassDual Sonos-engineered drivers generate deep, dynamic low frequencies. The ported enclosure enhances the bass response so you feel every beat, roar, and rumble in your chest. Transform your home theatre experiencePair Sub 4 with Sonos Arc Ultra, Arc, or Beam for dramatically deeper bass and clearer highs that draw you deeper into movies, shows, and games.¹ Bring your music to lifeHear the nuance in every note and enjoy a greater sense of spaciousness when you pair Sub 4 with Sonos Five, Era 300, or Era 100.¹ No buzz or rattleThe acoustic architecture creates a force-cancelling effect that virtually eliminates distortion. Perfectly tuned for the roomTrueplay™ optimizes the sound for the unique acoustics of the room and placement of your speakers. Plug and playSimply plug in the power cable and open the Sonos app to add Sub 4 to your system. Place it where and how you wantSub 4 reliably connects to your Sonos soundbar or speaker over Wi-Fi so you can place it anywhere in the room — even on its side and under your sofa. Double the dramaPair two with Arc Ultra or Arc for bass so deep and sound so immersive, you'll forget you're at home and not in an actual theatre.¹ Key Features Dual Sonos-engineered drivers generate deep, dynamic bass Ported enclosure enhances the bass response and low-frequency output Transform your home theatre experience when you pair with Sonos Arc Ultra, Arc, or Beam¹ Bring your music to life when you pair with Sonos Five, Era 300 or Era 100¹ Force-canceling acoustic architecture virtually eliminates distortion, buzz, and rattle Iconic sculptural design and updated matte finish that matches your Sonos system Reliably connects to your Sonos soundbar or speaker over Wi-Fi for flexible placement options¹ Plug-and-play setup with a single power cable and the Sonos app Stand it upright or lay it on its side and hide it under your sofa Pair two with Arc Ultra or Arc for next-level immersion in all your entertainment