SUB 4 -Premium Wireless Subwoofer

Pair Sub 4 with your Sonos soundbar or speaker to experience bass you can truly hear and feel. Dual force-cancelling woofers deliver deep, powerful low end while virtually eliminating distortion, and the updated matte finish ensures the iconic design looks right at home in any space.

Setup is quick and simple -just plug in the power cable and connect over WiFi. Place Sub 4 upright, on its side, or even tucked under the sofa, and for the ultimate experience, pair two with Arc Ultra or Arc to enjoy bass so immersive and cinematic you’ll forget you’re not in the theatre.

Amplifiers: Dual Class-D digital amplifiers tuned to the acoustic architecture
Woofers: Dual 5″ × 8″ elliptical woofers, inward-facing for force-cancelling effect, virtually eliminating distortion
Cabinet: Ported enclosure for enhanced bass response
Frequency Response: Down to ~25 Hz
EQ & Tuning: Automatic equalization with paired speakers; adjustable bass/treble/loudness via app; Trueplay™ room tuning
Dimensions: 15.31 in (389 mm) H × 15.83 in (402 mm) W × 6.22 in (158 mm) D
Weight: 25.99 lbs (11.79 kg)
Colours & Finish: Black or White, matte finish
Connectivity:

• WiFi: 802.11a/b/g/n/ac/ax (2.4 & 5 GHz)

• Ethernet: 10/100 Mbps port

Power: Internal supply 100–240 V, 50/60 Hz
Processor & Memory: Quad-core CPU (4 × A55 at 1.9 GHz); 512 MB RAM (DDR4); 4 GB eMMC storage
Operating Temperature: 32–104°F (0–40°C)
In the Box: Power cable (≈ 2 m / 6 ft), Quick Start Guide, legal & warranty information

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.¹

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 100.¹

Person sitting on a chair listening to music on Sonos Five with Sub 4

Sonos Sub 4 and Sonos Five on a console table

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.