Sub 4 unlocks the full power of Sonos sound to immerse you deeper in every scene and song.

Pair Sub 4 with your Sonos soundbar or speaker for a difference you can hear and feel.1 Dual force-cancelling woofers deliver pulse-pounding bass and virtually eliminate distortion. Updated with a matte finish, the iconic design looks great in your home. Set it up in minutes — just plug in the power cable and open the Sonos app. Sub 4 connects to your system over WiFi, so you can put it where it looks and fits best in the room. Stand it upright or lay it on its side and hide it under your sofa. Pair two with Arc Ultra or Arc for bass so deep and sound so cinematic, you’ll forget you’re not in an actual theatre.

Bass you can feel

Pulse-pounding power

Dual Sonos-engineered drivers generate deep, dynamic low end. The ported enclosure enhances the bass response and low-frequency output so you feel every beat, roar, and rumble in your chest.

Transform your home theatre experience

Pair Sub 4 with Sonos Arc Ultra, Arc, or Beam for dramatically richer bass, clearer highs, and deeper immersion in all your entertainment.

Bring music to life

Discern every subtle detail and enjoy a more spacious soundstage when you pair Sub 4 with Sonos Five, Era 300, or Era 100.

No buzz or rattle

The acoustic architecture creates a force-cancelling effect that virtually eliminates distortion.

Better sound all around

Sub 4 takes over the lowest frequencies so your paired soundbar or speakers can deliver high and mid frequencies with even greater clarity and precision.

Perfectly tuned for the room

Trueplay™ optimizes the sound for the unique acoustics of your space so the bass never sounds harsh, muddy, or flat — even if you place Sub 4 next to the wall or lay it flat and put it under your sofa.

Iconic design

Made to be seen, heard, and felt. Sub 4 features an elegant sculptural shape and updated matte finish that perfectly matches your paired Sonos soundbar or speaker.

Plug and play

Simply plug in the power cable and open the Sonos app to quickly add Sub 4 to your system.

Place it where you want

Sub 4 connects to your system over WiFi, so you can place it where it fits and looks best in the room.

Compatible products

• Arc Ultra
• Arc
• Beam (Gen 2)
• Beam (Gen 1)
• Ray
• Five
• Era 300
• Era 100

Double the drama

Pair two subwoofers with Arc Ultra for bass so deep and sound so immersive, you'll forget you're at home and not in an actual theatre.

Audio

Amplifiers
Dual Class-D digital amplifiers perfectly tuned to the subwoofer's unique acoustic architecture.

Woofers
Dual 5" x 8" elliptical woofers face inward for a force-cancelling effect that virtually eliminates distortion.

Architecture
Ported cabinet enhances bass response.

Frequency Response
As low as 25 Hz

EQ
Audio settings automatically equalize to balance Sub 4 and the paired Sonos speaker(s). Use the Sonos app to adjust bass, treble, and loudness.

Trueplay
This software measures the acoustics of the room then fine-tunes your Sonos system.