The Sub 4 unlocks the full power of Sonos sound. Pair this subwoofer with your Sonos soundbar or speaker for pulse-pounding bass that immerses you even deeper in movies, TV, and music. Updated with a matte finish, the iconic design features dual force-canceling woofers that virtually eliminate distortion. By taking over the lowest frequencies, the paired soundbar or speakers can deliver high and mid frequencies with even greater clarity and precision.