Dual 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 experience

Pair 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 life

Hear 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 rattle

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

Perfectly tuned for the room

Trueplay optimizes the sound for the unique acoustics of the room and placement of your speakers.

Iconic design

With its elegant sculptural shape and updated matte finish, Sub 4 is designed to look great in your home and to match your Sonos speakers.

Plug and play

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

Place it where and how you want

Sub 4 reliably connects to your Sonos soundbar or speaker over WiFi so you can place it anywhere in the room — even on its side and under your sofa.

Double the drama

Pair 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

Toned down impact

Sub 4 uses fewer materials and is more energy efficient than previous generations.

Upgraded technology

With increased processing power, memory, and new WiFi radios, Sub 4 is the most advanced Sonos subwoofer to date.

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-canceling effect that virtually eliminates distortion.
Architecture	Ported cabinet enhances bass response.
Frequency response	As low as 25 Hz
EQ	Audio settings automatically equalise 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.
Details + Dimensions
Dimensions	Height: 15.31 in (389 mm) Width: 15.83 in (402 mm) Depth: 6.22 in (158 mm)
Weight	26 lb (11.79 kg)
Colours	Black, White
Finish	Matte
Join button	Press once to add Sub 4 to your system during setup.
Power + Connectivity
WiFi	Connect to WiFi with any 802.11a/b/g/n 2.4 or 5 GHz broadcast-capable router.
Ethernet	10/100 port for hardwiring to your router
Voltage	100-240V 50/60Hz internal power supply
CPU	Quad Core 4 x A55 1.9GHz
Memory	512 MB DDR4 4GB eMMC
Operating temperature	32°F to 104°F (0°C to 40°C)
Box Contents
Sonos Sub 4	1 x Sonos Sub 4
Power cable	Length: 6 ft (2 m)
Documentation	Quickstart Guide and legal/warranty information
Requirements
WiFi	Internet connection
Power source	Nearby electrical outlet
Sonos app	The latest generation of the Sonos app running on a compatible device
Sonos product	An amplified non-portable product, such as Arc Ultra or Era 300

Last updated: Thursday, 3 April 2025

Warranty

This product is sourced in Australia and carries a full Australian Manufacturers Warranty