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Sonos Arc Ultra adds a newer driver design, Bluetooth, Wi-Fi 6, Android Trueplay support in Sonos’s comparison listing, and four Speech Enhancement levels; the original Sonos Arc has fewer listed drivers and a taller, narrower body. Both connect to a TV over HDMI eARC/ARC and support Dolby Atmos. Choose Ultra if its documented extras and lower profile justify the higher verified price for you; choose Arc if you find it at a substantially better price and its feature set meets your needs. Sonos’s listed US prices were $1,099 for Ultra and $899 for Arc, but prices and availability can change.
What is different between Sonos Arc Ultra and Arc?
The headline differences are the Ultra’s Sound Motion architecture, Sonos’s 9.1.4 spatial-audio description, Bluetooth, Wi-Fi 6, expanded Trueplay device support in Sonos’s comparison listing, and four customizable Speech Enhancement levels. The original Arc has fewer listed drivers, Wi-Fi, and Speech Enhancement in the Sonos app.
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| Feature | Sonos Arc Ultra | Sonos Arc | What it means |
|---|---|---|---|
| Drivers | 14 Sonos-engineered drivers, including Sound Motion | 11 drivers, including two dedicated height channels | The architecture differs, but driver count alone does not establish how much better either bar will sound in your room. |
| Immersive audio | Sonos describes a 9.1.4 spatial-audio experience with Dolby Atmos | Dolby Atmos with upward-firing drivers | These are manufacturer descriptions, not independent channel measurements. |
| Dialogue settings | Four customizable Speech Enhancement levels | Speech Enhancement in the Sonos app | Ultra offers more adjustment levels on paper; no independent comparative dialogue test is available here. |
| Wireless connectivity | Wi-Fi 6 and Bluetooth | Wi-Fi | Ultra adds Bluetooth according to Sonos’s product listing. |
| TV connection | HDMI eARC/ARC | HDMI eARC/ARC | Both use the TV’s compatible HDMI port and included HDMI cable. |
| Trueplay listing | iOS and Android | iOS | Check Sonos’s current device requirements before relying on support for a particular phone or tablet. |
| Dimensions and weight | 46.38 × 2.95 × 4.35 in; 13.01 lb | 44.96 × 3.43 × 4.57 in; 13.78 lb | Ultra is wider, shorter, and slightly lighter. Measure the shelf, wall, or space below your TV. |
| US listed price | $1,099 | $899 | These are prices shown on Sonos’s US listings when checked for this comparison; confirm current price and stock before buying. |
Does Arc Ultra sound better?
Sonos presents Ultra as a newer and more feature-rich soundbar, but the specifications do not prove that it will sound better to every listener. The driver count and 9.1.4 description are manufacturer claims; they are not a substitute for a controlled head-to-head listening test or measurements in your room. Sonos’s Arc Ultra fact sheet also says its Sound Motion woofer doubles bass output compared with Arc. Treat that as Sonos’s claim, not an independently verified result: Sonos Arc Ultra fact sheet.
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For a feature-based decision, Ultra’s extra dialogue levels may matter if you often adjust speech clarity, while Bluetooth may be useful if you want a connection option beyond Wi-Fi and the TV’s HDMI link. If your priority is proven audible superiority, the available specifications alone cannot settle the question.
#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
Which Sonos soundbar should you buy?
Choose Arc Ultra if
- You want the newer listed driver architecture and Sonos’s 9.1.4 Dolby Atmos presentation.
- You value Bluetooth, Wi-Fi 6, or the Android Trueplay support shown in Sonos’s comparison listing.
- You want four Speech Enhancement levels.
- The lower-profile height fits your installation better, and its wider body still fits the available space.
Choose the original Arc if
- You find it at a substantially lower, verified price than Ultra.
- Its listed features—Dolby Atmos, Wi-Fi, HDMI eARC/ARC, and app-based Speech Enhancement—cover what you need.
- You have a supported iOS device for the Trueplay support listed for Arc, and do not need the Ultra’s listed Bluetooth or Android Trueplay support.
Sonos’s Arc Ultra fact sheet gives October 29, 2024 as the start of availability in its named launch markets and records a US launch price of $999. That is historical launch information, not a current price. Sonos’s later US product listings showed $1,099 for Ultra and $899 for Arc; the Arc page was out of stock when checked for this comparison. Availability and pricing can change, so compare the live listings before deciding.
Will either fit your TV setup?
Both soundbars connect to the TV’s HDMI eARC/ARC port using the included HDMI cable. Check that your television has a compatible port and that your furniture or mounting position accommodates the bar’s width and height. Ultra is 1.42 inches wider and 0.48 inches shorter than Arc, so a tight shelf or a low space beneath the screen can make the physical difference more important than the feature list.
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
Sonos describes Arc Ultra as compatible with a Sonos Sub and Era 300 rear speakers for an expanded Dolby Atmos system. These are optional additions, not requirements for using the soundbar.
Should you upgrade from Sonos Arc to Arc Ultra?
An upgrade is easiest to justify if you specifically want Ultra’s added Bluetooth, its listed Android Trueplay support, more Speech Enhancement levels, or its shorter profile. If you are satisfied with your Arc and are considering a change mainly for a guaranteed improvement in sound, Sonos’s specifications do not establish that outcome. Compare the price of the upgrade with the features you would actually use rather than treating the newer model or higher driver count as proof of a worthwhile upgrade.
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.
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.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
