Featuring breakthrough Sound Motion™ technology, Arc Ultra brings your entertainment to life like no other soundbar.

Experience clearer dialogue, deeper bass, and more detailed sound that precisely surrounds you from every direction — all in an unbelievably sleek design. Dolby Atmos takes immersion to a whole new dimension, creating a 9.1.4 spatial audio experience.1 An advanced version of Speech Enhancement gives you greater control over dialogue clarity so you never miss a word. Get set up in minutes with the included HDMI cable, and enjoy streamlined control with your TV remote. You can also use the Sonos app, the touch controls on top of Arc Ultra, Sonos Voice Control, and Amazon Alexa.2 When your TV is off, stream music and more from all your favourite services using WiFi and Bluetooth. Add a Sonos Sub and Era 300 rear speakers for the ultimate Dolby Atmos surround sound experience. Listen all around your home when you add Sonos speakers to other rooms.

The soundbar, reinvented
Arc Ultra is the sleekest and most powerful soundbar Sonos has ever created. With an all-new acoustic architecture powered by 14 Sonos-engineered drivers and advanced technologies like Sound Motion™, Arc Ultra fills every inch of the room and precisely places sounds all around you for an entertainment experience that feels out of this world.

Sound Motion™
Key to next-level immersion
One of the most significant breakthroughs in audio engineering in nearly 100 years, Sound Motion™ packs unprecedented performance in an unbelievably flat, compact design. This technology unlocks greater clarity, depth, and balance than ever before possible from a soundbar this sleek. Hear every frequency with astounding accuracy, and experience double the bass output of Arc.

Sound in a whole new dimension
With Dolby Atmos, Arc Ultra brings sound to life with sensational definition and envelops you in a mind-blowing 9.1.4 spatial audio experience.

Dialogue has never been so clear
Arc Ultra is engineered to maximise dialogue clarity. The Sonos app gives you the power to make every word even clearer with your preferred level of Speech Enhancement.

A singular home theatre experience
Instantly swap TV audio from Arc Ultra to Sonos Ace for private surround sound and sensational spatial audio with dynamic head tracking.

Breeze through setup
Get theatre-quality sound in minutes. Simply plug in the power cable, connect your TV with the included HDMI cable, and open the Sonos app to complete setup.

Perfectly tuned for the room
With just a few taps in the Sonos app, Trueplay™ optimises the sound for the unique acoustics of the room and placement of the soundbar. Available for iOS and Android.

Fill your home with music
Arc Ultra is more than a soundbar. It’s also our most powerful spatial audio speaker. When the TV is off, stream music and more with WiFi and Bluetooth. Listen all around your home with Sonos speakers in other rooms.

Tech Specs

Audio

Amplifiers
Fifteen Class-D digital amplifiers perfectly tuned to the unique acoustic architecture.

Tweeters
Seven precisely angled silk-dome tweeters create crisp high frequencies and clear dialogue. Two of these fire upward, creating dedicated height channels for spatial audio.

Mid-woofers
Six midwoofers ensure faithful playback of mid-range frequencies.

Woofers
Sound Motion™, a four-motor, dual-membrane woofer, delivers exceptional bass in a revolutionary flat, compact design.

Microphones
The far-field microphone array uses advanced beamforming and multichannel echo cancellation for quick and accurate voice control and Trueplay tuning. Disconnect by toggling off the mic switch.

Adjustable EQ
Use the Sonos app to adjust bass, treble, and loudness.

Trueplay
This software measures the acoustics of the room then fine-tunes the EQ. Compatible with iOS and Android devices.

Speech Enhancement
Choose your preferred level of dialogue clarity in the Sonos app.

Night Sound
Turn this setting on in the Sonos app to reduce the intensity of loud sounds and increase the level of quieter sounds.

Home Theatre audio formats
Stereo PCM, Dolby Digital, Dolby Digital Plus, Dolby Atmos (Dolby Digital Plus), Dolby Atmos*, Dolby TrueHD*, Dolby Atmos (True HD)*, Multichannel PCM*, Dolby Multichannel PCM*, DTS Digital Surround**
The Sonos app's Now Playing screen will display what type of audio is being decoded.
*HDMI6 eARC connection required.
**This is not an indication of a licensed decoder.

Dolby Atmos Music
Requires compatible content.

TV Audio Swap
Swap TV audio between the soundbar and Sonos Ace headphones.

Details + Dimensions

Dimensions

Height: 75 mm
Width: 1,178 mm
Depth: 110.6 mm

Weight
5.9 kg

Colours
Black, White

Finish
Matte

Mounting
M5 x 0.8mm thread pitch L6.5mm

Controls
Use the capacitive touch controls to play, pause, skip, replay, adjust the volume, turn off voice assistants, and group or ungroup Sonos products.

Bluetooth Button
Press to pair with a Bluetooth device.

Mic switch
Toggle off the switch on the back of the product to disconnect power to the microphones.

LEDs
Lights on the product indicate connection, mute status, microphone activation and errors.

Power + Connectivity

WiFi
Compatible with WiFi 6. Connect to WiFi with any 802.11a/b/g/n/ac/ax 2.4 GHz/5 GHz broadcast-capable router.

HDMI eARC
Connect to your TV's HDMI eARC/ARC port with the included HDMI cable.

Optical
Optical audio adapter sold separately.

Bluetooth
Bluetooth 5.3 supports audio streaming from any Bluetooth-enabled device.

Voltage
100-240V 50/60Hz internal power supply

CPU
Quad Core
4xA55 1.9GHz

Memory
2GB SDRAM
8GB NV

Voice
Works with Sonos Voice Control and Amazon Alexa. Availability of services varies by language and country.

Apple AirPlay 2
Works with AirPlay 2 on Apple devices iOS 11.4 and higher on WiFi

TV Compatibility
Not compatible with CCFL-backlit TVs (manufactured 2004-2012)

Box Contents

Sonos Arc Ultra

Power Cable I
Length: 6 ft (2 m)

HDMI Cable
Length: 4.9 ft (1.5 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