Arc Ultra

Premium Smart Soundbar

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.

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.

Beyond immersive

Pair Arc Ultra with a Sonos Sub and Era 300 rear speakers for the ultimate Dolby Atmos surround sound experience, with bass you can feel and jaw-dropping detail from every direction.² Make the experience all your own with a pair of Sonos Ace headphones.

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.

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.

The most dynamic duo

Get the ultimate out-loud and personal listening experiences with Sonos Ace and Arc Ultra.

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.

Environmentally sound design

From increasing the energy efficiency of our products to eliminating plastic from our packaging, we're finding innovative ways to tone down our environmental impact.

Specifications

Specifications

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

Tweeters: Seven precisely angled silk-dome tweeters create crisp high frequencies and clear dialogue, with two firing upward for dedicated height channels in spatial audio.

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

Woofers: Sound Motion™ features a four-motor, dual-membrane woofer that delivers exceptional bass in a 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.

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

Trueplay: This software measures the room's acoustics and fine-tunes the EQ. Compatible with iOS and Android devices.

Speech Enhancement: Adjust the level of dialogue clarity in the Sonos app.

Night Sound: Activate this setting in the Sonos app to reduce loud sounds and enhance quieter ones.

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** (*HDMI eARC connection required. **This is not an indication of a licensed decoder.)

Dimensions: HxWxD - 75x1178x110.6 mm
Colours: Black, White
Weight: 5.9 kg
Finish: Matte
Mounting: M5 x 0.8mm thread pitch, L6.5mm
Controls: Use capacitive touch controls for playback, volume adjustment, and voice assistant settings.

WiFi: Connect to WiFi with any 2.4 GHz 802.11a/b/g/n/ac/ax router.

HDMI eARC: Connect to your TV's HDMI eARC/ARC port with the included HDMI cable. Optical audio adapter sold separately.

Ethernet: 10/100 port for hardwiring to your router.

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

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

CPU: Quad Core, 4xA55 at 1.9 GHz.

Memory: 2GB SDRAM, 8GB NV.

Apple AirPlay 2: Works with AirPlay 2 on Apple devices (iOS 11.4 and higher).

Voice Control: Compatible with Sonos Voice Control and Amazon Alexa. Availability varies by language and country.

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

Sonos Arc
Power cable - 6 ft (2 m)
HDMI cable - 4.9 ft (1.5 m)
Optical audio adapter (sold separately)
Documentation