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.

Key to next-level immersion

Sound Motion™ technology redefines what’s possible in audio performance. By integrating Sound Motion™ into Arc Ultra, we’re able to obtain a deeper, more powerful bass response in a smaller package. This innovation frees up space for additional tweeter and mid-range drivers, delivering a more expansive and balanced soundstage, surpassing the previous generation 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.

Design worthy of your home

Distinctive curved shape. Low-profile design. Matte finish. Arc Ultra is thoughtfully crafted to look great in your home and keep the focus on your entertainment.

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.

Technical Specifications

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 Cinema 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.

*HDMI5 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.
Dimensions
Height: 2.95 in (75 mm)
Width: 46.38 in (1,178 mm)
Depth: 4.35 in (110.6 mm)
Weight - 13.01 lbs (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.
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)
Sonos Arc Ultra
Power Cable - Length: 6 ft (2 m)
HDMI Cable - Length: 4.9 ft (1.5 m)
Documentation - Quickstart Guide and legal/warranty information
WiFi - Internet connection
Power Source - Nearby electrical outlet
Sonos app - The latest generation of the Sonos app running on a compatible device