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What you need before setup
- The Sonos app on an iOS or Android device.
- The included HDMI cable.
- A TV HDMI port labeled ARC or eARC. Port labels and settings vary by TV, so consult its manual if you cannot identify the port or audio options.
Sonos requires app setup before Arc Ultra can play TV audio. Follow Sonos’s Arc Ultra setup instructions as you connect the speaker.
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Set up Arc Ultra and connect it to the TV
- Place Arc Ultra where you intend to use it and connect it to power. Keep the included HDMI cable nearby.
- Open the Sonos app and add the speaker. For a new system, choose Speaker or component during setup, sign in or create an account, select Add when Arc Ultra appears, and follow the prompts. For an existing system, go to Settings > Add Speaker or Component.
- When prompted, connect the HDMI cable between Arc Ultra and the TV’s HDMI ARC/eARC port. Follow the app’s directions; check the TV manual if you cannot locate the correct port.
- Finish the remaining prompts in the app, then play TV audio to check the connection.
If you plan to add a Sub or rear surrounds, finish Arc Ultra setup first and then add them in the Sonos app. Check Sonos’s surround-sound compatibility guidance for supported products.
Which TV connection should you use?
| Connection | Audio and Atmos | TV controls | When it makes sense |
|---|---|---|---|
| HDMI ARC | Supports TV audio and can carry many Dolby Digital Plus Atmos streams. It does not support lossless Dolby Atmos over Dolby TrueHD. | Supports HDMI-CEC functions; Sonos says a TV remote works automatically with HDMI ARC. | Use it if the TV has an ARC port and you do not need lossless TrueHD Atmos. |
| HDMI eARC | Supports TV audio and is required for lossless Dolby Atmos using Dolby TrueHD. Some devices, including Apple TV, pass Atmos using Dolby MAT. | Supports HDMI-CEC functions when enabled on the TV. | Use it if available, especially when your source sends lossless TrueHD Atmos. |
| Optical audio adapter | Sonos describes optical as a fallback for home-theater products when a TV lacks HDMI ARC, but it does not provide Atmos. Sonos’s general guidance does not establish whether an optical adapter is included with Arc Ultra. | Does not provide HDMI-CEC or voice control for TV power. Remote setup in the Sonos app is needed for an optical-connected system. | Consider it only when the TV lacks ARC/eARC and you accept those limitations. Confirm adapter compatibility before relying on this option. |
For Sonos’s format requirements, see its supported home-theater audio formats and Atmos guidance.
#1 Best Overall
- All-new acoustic architecture with Sound Motion technology fills every inch of the room and precisely place sounds all around you
- Unparalleled 9.1.4 spatial audio experience with Dolby Atmos
- Ultra-clear dialogue plus Speech Enhancement, powered by AI, detects the human voice to clarify every word
- Elegant design looks great in your home and won’t distract from your entertainment
- Control with your TV remote, the Sonos app, the touch controls, Sonos Voice Control, and Amazon Alexa
How to check whether Dolby Atmos is playing
An Atmos-capable service or device does not guarantee that every title will arrive as Atmos. Availability depends on the TV, source device, title, and streaming plan. When Arc Ultra receives Atmos, Sonos says the app shows an Atmos badge in Now Playing. You can also check the received TV audio format in the app’s Settings.
If Atmos is not shown, verify that Arc Ultra is connected to the TV’s ARC/eARC port, then check that the specific title and playback device are sending Atmos. For lossless Dolby TrueHD Atmos, the TV connection must be eARC; Dolby Digital Plus Atmos can often travel over ARC.
Rank #2
- All-new acoustic architecture with Sound Motion technology fills every inch of the room and precisely place sounds all around you
- Unparalleled 9.1.4 spatial audio experience with Dolby Atmos
- Ultra-clear dialogue plus Speech Enhancement, powered by AI, detects the human voice to clarify every word
- Elegant design looks great in your home and won’t distract from your entertainment
- Control with your TV remote, the Sonos app, the touch controls, Sonos Voice Control, and Amazon Alexa
Set up TV remote and voice control
A TV remote works automatically with an HDMI ARC connection, according to Sonos. To use voice commands to turn the TV on or off or change its volume, add Sonos Voice Control or Alexa and enable HDMI-CEC on the TV. These TV power commands do not work over optical. TV menu names and locations vary, so use the TV manual for the HDMI-CEC setting. Sonos’s TV remote guidance explains the setup options.
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The Sonos app cannot find Arc Ultra
Use Sonos’s Product not found troubleshooting steps and resume setup in the app.
Rank #3
- The ultimate Dolby Atmos experience: The lateral and overhead channels in Arc Ultra and both Era 300 speakers immerse you an an all-encompassing spatial audio soundstage. You’ll hear planes as if they’re flying above, sense footsteps moving across the room, and feel like you're inside your music.
- Feel the bass: Experience every rumble, roar, and beat you've been missing with clean, pulse-pounding bass. Sub 4 takes over the lowest frequencies so paired speakers are free to focus on midrange and high frequencies so everything sounds even clearer.
- Wonderfully wireless: Place Sub 4 anywhere in the room, even under your sofa. It connects to the soundbar over WiFi, so you can create the setup that works best for your space.
- Perfectly tuned for the room: Using the microphones in your iOS device, Trueplay tuning technology analyzes the unique acoustics of your space and optimizes the EQ. So all your content sounds just the way it should.
- Breeze through setup: Simply plug in the power cable, connect your phone or tablet to WiFi, and open the Sonos app. It will guide you through connecting the soundbar to your TV and syncing your TV remote for streamlined control.
Arc Ultra is connected, but there is no TV sound
- Check that the HDMI cable is connected to the TV’s ARC/eARC port, not a different HDMI input.
- Consult the TV manual for its audio output and HDMI-CEC options; menu labels differ by manufacturer.
- Check the received TV format in Sonos app Settings to see what signal is reaching Arc Ultra.
Sonos’s setup and TV connection guidance is available at Arc Ultra setup and TV requirements for Sonos home-theater products.
Quick Recap
Best Value
- Crafted in partnership with Sonos, this soundbar mount is exclusively custom-built to guarantee an optimal Sonos Arc sound bar performance. Our engineers designed this premium mount with the utmost attention to detail and the highest quality material to complement the Sonos Arc premium audio experience.
- The SANUS soundbar mount designed for the Sonos Arc soundbar is height adjustable to easily fit a wide range of TV sizes from 50” – 90”. The easy release latch allows you to effortlessly adjust the height to fit your personal listening preferences. This Sonos Arc Mount is also depth adjustable to ensure easy access to the soundbar I/O button & keep power ports, mics, and Atmos drivers unobstructed.
- When attached to a full-motion tv mount, the sound moves in symbiosis with your tv mount. Furthermore, the universal compatibility allows this SANUS soundbar mount to work not only with SANUS TV mounts but also other TV mounts brands, VESA Patterns, and for many 50"-90" TVs. This means you can use this SANUS Soundbar Mount to create a seamless look between your TV and your Sonos Arc regardless of the TV mount or TV brand.
- Easy 3 Step installation, no drilling required. Everything you need to install this Sonos Arc Sound Bar mount is included in the package. Rest assured knowing every SANUS Product is safety tested & quality built.
Rank #4
- Enrich your entertainment experience with vibrant bass, crystal clear dialogue, and a panoramic soundstage.
- Experience a 3D surround sound effect with Dolby Atmos.
- Stream music, radio, podcasts, and audiobooks from all your favorite services when the TV is off.
- Control with the Sonos app, your TV remote, Apple AirPlay 2, and your voice.
- Effortless setup with only two cables and smart Trueplay tuning.
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