TV and audio / Soundbars
SonosSoundbar
Arc Ultra
Released October 2024.9Press releasenewsroom.sonos.com/254655-sonos-reveals-arc-ultra-its-new-soundbar-featuring-sound-motionRead 8 October 2026Standalone Arc Ultra available October 29, 2024. Last checked 23 October 2026.
- System channel configuration
- 9.1.4
- Dolby Atmos
- Yes
- Separate subwoofer included
- No
- HDMI eARC
- Yes
60 of 98 fields known.
At a glance
Ports
- HDMI
- Ethernet 10/100 Mbps
- AC power
Audio system
- System channel configuration
- 9.1.42Owner's manualsonos.com/en-us/guides/arcultraRead 8 October 2026Maker-advertised standalone spatial-audio layout. Includes virtual channels. It is not the physical driver layout. RTINGS describes the physical layout as 5.1.2.
- Physical drivers in the package
- 142Owner's manualsonos.com/en-us/guides/arcultraRead 8 October 2026Standalone reference package has no supplied external subwoofer or rear enclosures. Same active drivers as the bar.
- Physical drivers in the bar
- 142Owner's manualsonos.com/en-us/guides/arcultraRead 8 October 2026Active drivers only. Seven tweeters, six midwoofers and one Sound Motion woofer. Two membranes and four motors do not make the Sound Motion assembly multiple drivers.
- Up-firing drivers in the package
- 22Owner's manualsonos.com/en-us/guides/arcultraRead 8 October 2026
- Driver layout
Component Driver type Count Orientation Soundbar Silk-dome tweeter 5 Angled Soundbar Silk-dome tweeter 2 Up-firing Soundbar Midwoofer 6 Not available Soundbar Sound Motion woofer 1 Not available - Separate subwoofer included
- No1Maker product pagesonos.com/en-us/shop/arc-ultraRead 8 October 2026Complete standalone-bar box contents. Separate Sonos subwoofers are optional.
- Included subwoofer connection
- Not available
- Included subwoofer driver diameter
- Not available
- Rear speakers included
- 01Maker product pagesonos.com/en-us/shop/arc-ultraRead 8 October 2026Complete standalone-bar box contents. Rear speakers are optional.
- Included rear speaker connection
- Not available
- Detachable rear speakers
- Not available
- Compatible optional subwoofers
- Sub (Gen 1), Sub (Gen 2), Sub (Gen 3), Sub 4, Sub Mini10Maker product pagesupport.sonos.com/en-us/article/set-up-your-sonos-subRead 8 October 2026Sub 1/2/3 support all home theater speakers. Sub 4 supports all except Playbar/Playbase. Sub Mini has separate support list. Arc Ultra dual-Sub setup requires two Sub 4/Gen 3 units, not Gen 1/2.11Maker product pagesupport.sonos.com/en-us/article/sonos-products-that-support-sub-miniRead 8 October 2026Home Theater list explicitly includes Arc Ultra, Beam (Gen 2) and Ray for Sub Mini.
- Compatible optional rear speakers
- Era 100, Era 30013Maker product pagesonos.com/en-us/shop/arc-ultraRead 8 October 2026Optional Sonos rear-speaker sets on the product page. Supplied package remains the standalone bar.
- Total RMS audio output power
- Not available
- Total peak audio output power
- Not available
- Published frequency response lower limit
- Not available
- Published frequency response upper limit
- Not available
Audio formats
- Supported audio formats
- Stereo PCM, Dolby Digital, DTS Digital Surround, Dolby Digital Plus, Dolby Atmos (Dolby Digital Plus), Dolby Atmos (Dolby TrueHD), Dolby TrueHD, Multichannel PCM, Dolby Multichannel PCM, Dolby Atmos (Dolby MAT)4Maker product pagesupport.sonos.com/en-us/article/supported-home-theater-audio-formatsRead 8 October 2026Current Sonos app. Dolby TrueHD, multichannel PCM and MAT require eARC. DTS Digital Surround is not an indication of a licensed decoder.
- Audio formats by connection
Connection Format HDMI ARC Stereo PCM HDMI ARC Dolby Digital HDMI ARC DTS Digital Surround HDMI ARC Dolby Digital Plus HDMI ARC Dolby Atmos (Dolby Digital Plus) HDMI eARC Stereo PCM HDMI eARC Dolby Digital HDMI eARC DTS Digital Surround HDMI eARC Dolby Digital Plus HDMI eARC Dolby Atmos (Dolby Digital Plus) HDMI eARC Dolby TrueHD HDMI eARC Dolby Atmos (Dolby TrueHD) HDMI eARC Multichannel PCM HDMI eARC Dolby Multichannel PCM HDMI eARC Dolby Atmos (Dolby MAT) - Music file formats
- MP3, MP4, M4A, WMA, AAC, HE-AAC, OGG, FLAC, ALAC, AIFF, WAV5Maker product pagesupport.sonos.com/en-us/article/supported-audio-formats-for-sonos-music-libraryRead 8 October 2026Local network music-library playback through the current Sonos app. Mono or stereo files. This is separate from HDMI/optical theater formats.
- Max wired audio sample rate
- Not available
- Max music file sample rate
- 48kHz5Maker product pagesupport.sonos.com/en-us/article/supported-audio-formats-for-sonos-music-libraryRead 8 October 2026Published local music-library maximum. Not a claim that HDMI/optical input rates match this route.
- Max wired audio bit depth
- Not available
Connectivity
- Ports on the bar
Connector Count Version Role HDMI 1 Not available TV audio return input (ARC/eARC) Ethernet 1 10/100 Mbps Network input AC power 1 Not available Mains power input - Video passthrough modes
- Not available
- HDR passthrough formats
- Not available
- VRR passthrough
- Not available
- ALLM passthrough
- Not available
- HDCP version
- Not available
- Bluetooth audio input
- Yes1Maker product pagesonos.com/en-us/shop/arc-ultraRead 8 October 2026
- Bluetooth version
- 5.31Maker product pagesonos.com/en-us/shop/arc-ultraRead 8 October 2026
- Bluetooth audio codecs
- Not available
- Wi-Fi standard
- 802.11a/b/g/n/ac/ax3Maker product pagesupport.sonos.com/en-us/article/supported-wifi-modes-and-security-standards-for-sonos-productsRead 8 October 2026Dedicated device-mode support list. General user-guide router compatibility text is not device-protocol evidence.
- Built-in Ethernet speed
- 100Mbps1Maker product pagesonos.com/en-us/shop/arc-ultraRead 8 October 2026
Streaming and control
- Streaming protocols
- AirPlay 2, Spotify Connect, Tidal Connect1Maker product pagesonos.com/en-us/shop/arc-ultraRead 8 October 202614Reviewwhathifi.com/reviews/sonos-arc-ultraRead 8 October 2026Tech specs identify Spotify Connect and Tidal Connect. AirPlay 2 confirmed by maker.
- Voice assistants
- Sonos Voice Control, Amazon Alexa1Maker product pagesonos.com/en-us/shop/arc-ultraRead 8 October 2026Built-in voice services. Availability varies by country and language.
- Built-in microphone
- Yes1Maker product pagesonos.com/en-us/shop/arc-ultraRead 8 October 2026
- Microphone mute control
- Yes1Maker product pagesonos.com/en-us/shop/arc-ultraRead 8 October 2026Rear physical switch disconnects power to the microphones.
- Companion apps
- Sonos1Maker product pagesonos.com/en-us/shop/arc-ultraRead 8 October 2026
- Companion app platforms
- iOS, iPadOS, Android, Fire OS, macOS, Windows, Web6Maker product pagesupport.sonos.com/en-us/article/sonos-app-requirementsRead 8 October 2026Current app: iOS/iPadOS 18+, Android 10+, Fire OS 7+. Desktop macOS 10.12+/Windows 8+. Desktop and web have limited system setup features. Mobile iOS or Android required for initial setup.
- Multiroom audio
- Yes13Maker product pagesonos.com/en-us/shop/arc-ultraRead 8 October 2026
Sound processing
- Sound modes
- Speech Enhancement, Night Sound1Maker product pagesonos.com/en-us/shop/arc-ultraRead 8 October 2026
- Automatic room calibration
- Yes1Maker product pagesonos.com/en-us/shop/arc-ultraRead 8 October 2026Trueplay measures room acoustics. Quick tuning works with Android or iOS. Advanced tuning requires an iOS device.
- Room calibration system
- Trueplay1Maker product pagesonos.com/en-us/shop/arc-ultraRead 8 October 2026
- Dialogue enhancement
- Yes1Maker product pagesonos.com/en-us/shop/arc-ultraRead 8 October 2026
- Equalizer controls
- Bass, Treble, Loudness1Maker product pagesonos.com/en-us/shop/arc-ultraRead 8 October 2026
- TV speaker integration
- Not available
Power
- Published operating power
- Not available
- Published standby power
- Not available
- Published networked standby power
- Not available
- Power supply
- 100-240 V AC, 50/60 Hz, internal power supply1Maker product pagesonos.com/en-us/shop/arc-ultraRead 8 October 2026
- Detachable rear battery life
- Not available
- Detachable rear charge time
- Not available
Measured
We could not find any of these 8 fields. Show them
- Low-frequency extension (measured)
- Not available
- High-frequency extension (measured)
- Not available
- Max sound pressure (measured)
- Not available
- Frequency response deviation (measured)
- Not available
- Measured latency
- Not available
- Operating power (measured)
- Not available
- Standby power (measured)
- Not available
- Soundbar weight (measured)
- Not available
Dimensions and weight
Front and side, drawn to scale.
- Soundbar dimensions
- Width1,178Height75Depth110.6mm(46.4 × 3 × 4.4 in)2Owner's manualsonos.com/en-us/guides/arcultraRead 8 October 2026Current user guide Specifications, bar in tabletop orientation.
- Soundbar weight
- 5,900g(13 lb)2Owner's manualsonos.com/en-us/guides/arcultraRead 8 October 2026Current user guide Specifications, bar alone. Kilograms converted exactly to grams.
- Component dimensions and weight
- Not available
- Package dimensions
- Not available
- Package weight
- Not available
- Wall mountable
- Yes1Maker product pagesonos.com/en-us/shop/arc-ultraRead 8 October 2026
In the box
- In the box
- Sonos Arc Ultra, Power cable, HDMI cable, Setup guide, Legal and warranty information1Maker product pagesonos.com/en-us/shop/arc-ultraRead 8 October 2026Product page Box Contents lists the standalone bar package.
- Wall mount hardware included
- No1Maker product pagesonos.com/en-us/shop/arc-ultraRead 8 October 2026Sonos wall mount is sold separately.
- HDMI cable included
- Yes1Maker product pagesonos.com/en-us/shop/arc-ultraRead 8 October 2026
General
- Series
- Not available
- Model numbers
- ARCG2US1BLK, ARCG2US11Maker product pagesonos.com/en-us/shop/arc-ultraRead 8 October 2026Maker ProductGroup JSON-LD lists the black and white US standalone soundbar SKUs.
- GTIN / EAN
- Not available
- Announced
- 15 October 20249Press releasenewsroom.sonos.com/254655-sonos-reveals-arc-ultra-its-new-soundbar-featuring-sound-motionRead 8 October 2026
- Predecessor
- Sonos Arc16Reviewwhathifi.com/reviews/sonos-arcRead 23 October 2026What Hi-Fi says the Sonos Arc was discontinued and replaced by the Arc Ultra.
- Successor
- Not available
- Markets
- Not available
Links
- Product page
- www.sonos.com/en-us/shop/arc-ultra1Maker product pagesonos.com/en-us/shop/arc-ultraRead 8 October 2026
- Spec sheet
- assets.sonos.com/media-kits/hardware/sonos-arc-ultra/sonos-arc-ultrafactsheet.pdf8Maker spec sheet (PDF)assets.sonos.com/media-kits/hardware/sonos-arc-ultra/sonos-arc-ultrafactsheet.pdfRead 8 October 2026
- Manual
- www.sonos.com/en-us/guides/arcultra1Maker product pagesonos.com/en-us/shop/arc-ultraRead 8 October 2026
- EPREL registration number
- Not available
Warranty
Compare with
Pick a soundbar to see both side by side. Differences are marked yellow.
Sources
We read 16 sources for this soundbar. The numbers match the markers in the sheet.
- Maker product pagesonos.com/en-us/shop/arc-ultra
- Owner's manualsonos.com/en-us/guides/arcultra
- Maker product pagesupport.sonos.com/en-us/article/supported-home-theater-audio-formats
- Maker product pagesupport.sonos.com/en-us/article/sonos-app-requirements
- Maker product pagesonos.com/en-us/legal/terms-of-use
- Maker spec sheet (PDF)assets.sonos.com/media-kits/hardware/sonos-arc-ultra/sonos-arc-ultrafactsheet.pdf
- Maker product pagesupport.sonos.com/en-us/article/set-up-your-sonos-sub
- Maker product pagesupport.sonos.com/en-us/article/sonos-products-that-support-sub-mini
- Maker product pagesonos.com/en-us/shop/arc-ultra
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PredecessorSonos Arc