Dolby Atmos Soundbars 2026: The Complete Buyer's Guide
Dolby Atmos uses height channels to place sound in three-dimensional space around and above the listener — a ceiling speaker or upward-firing driver creates the overhead effect.
The soundbar market in 2026 is genuinely difficult to navigate. There are more options than ever, the technology has advanced rapidly, and "Dolby Atmos" appears on everything from £99 to £2,000 products — with dramatically different results. A Dolby Atmos logo does not, on its own, tell you much about what a soundbar actually sounds like.
This guide focuses on five soundbars that we consider the most meaningful options at Smart Home Sounds right now, spanning from the class-leading Sonos Arc Ultra through to the more design-focused Marshall Heston 120. Each one is genuinely good — the question is which one is right for your room, your TV and your priorities.
Contents
Quick comparison: five Dolby Atmos soundbars at a glance
| Soundbar | Price | Channels | Type | DTS:X | Ecosystem | Our Rating |
|---|---|---|---|---|---|---|
| Sonos Arc Ultra 🏆 | £999 | 9.1.4 | Standalone | — | Sonos | 9.6/10 |
| Samsung HW-Q990F | £1,699 | 11.1.4 | Full system | ✓ | Samsung | 9.2/10 |
| KEF XIO | £1,999 | 5.1.2 | Standalone | ✓ | KEF | 8.9/10 |
| Sony BRAVIA Theatre Bar 9 | From £899 | 13ch array | Standalone | ✓ | Sony | 8.6/10 |
| Marshall Heston 120 | £699 | Dolby Atmos | Standalone | ✓ | Marshall | 8.2/10 |
Prices correct at time of publication. Check smarthomesounds.co.uk for current pricing and availability.
1. Sonos Arc Ultra — our top pick
The Arc Ultra is, quite simply, the soundbar we'd recommend to most people asking us which one to buy. That's not because it's perfect — no soundbar is — but because it gets the things that matter most right, in a way that no competitor at a similar price manages to replicate consistently.
Its 9-driver configuration includes upward-firing and side-firing speakers that work together to create a sense of overhead sound and lateral width that genuinely surprises people hearing it for the first time. Sonos's proprietary SoundMotion™ technology handles low-frequency reproduction without relying on a separate subwoofer — though pairing it with the Sonos Sub 4 transforms it into something even more impressive for films.
Dialogue clarity deserves special mention. The dedicated centre channel in the Arc Ultra renders speech with a precision that makes subtitles genuinely optional for most content — a meaningful improvement over the original Arc, which could occasionally lose quieter conversation under aggressive sound design. Trueplay room calibration runs automatically and continuously, adapting to changes in your room rather than requiring manual re-runs.
Pros
- Class-leading dialogue clarity
- Genuine 9.1.4 spatial audio from one bar
- Trueplay runs automatically, always optimised
- Expandable with Sub 4, Era 300 rears
- Free 6-year warranty via Smart Home Sounds
Cons
- No HDMI passthrough
- No DTS:X support
- Wi-Fi only — no Bluetooth audio input
2. Samsung HW-Q990F — best complete home cinema system
The Q990F offers something none of the standalone soundbars on this list can match: true physical surround sound, delivered by dedicated rear speakers positioned behind you in the room. When those rear speakers play, the sense of envelopment is different in kind — not just different in degree — from what even the best standalone soundbar can simulate.
At £1,699, it looks expensive. But consider that building a comparable Sonos system — Arc Ultra, two Era 300s and a Sub 4 — would cost well over £2,500. The Q990F delivers that sort of spatial performance in a single retail package. Samsung's SpaceFit Sound Pro calibrates the system to your room automatically, and Q-Symphony allows compatible Samsung TVs to contribute their own speakers to the soundfield — a genuinely clever feature that widens the front stage further.
Pros
- Real physical surround sound — dedicated rear speakers
- Outstanding value vs comparable Sonos multi-component setup
- 23 total speakers across the system
- HDMI 2.1 with 4K/120Hz passthrough
- DTS:X + Dolby Atmos both supported
Cons
- Purely a Samsung ecosystem product
- Subwoofer and rears add cable management complexity
- Large footprint in the room
3. KEF XIO — best for music listeners
KEF's first soundbar takes a different approach from everyone else on this list. Where the Sonos Arc Ultra prioritises home cinema performance that can expand over time, and the Samsung Q990F focuses on immersive surround, the XIO is built around the principle that a soundbar should also be the finest music-listening device in your room.
The six Uni-Q MX drivers — KEF's signature coaxial design that places a tweeter at the acoustic centre of a mid-bass driver — deliver a tonal balance and midrange resolution that simply isn't available from conventional soundbar driver configurations. For piano, acoustic guitar, vocals and orchestral music, the XIO reveals details and spatial information that more cinema-focused soundbars compress or obscure. If you regularly listen to music through your soundbar with the TV off, this matters considerably.
Its Intelligent Placement Technology and Music Integrity Engine for Cinema handle room adaptation and dynamic processing respectively, and both work well. Currently available with a £200 cashback offer at Smart Home Sounds.
Pros
- Best-in-class music performance for a soundbar
- Uni-Q MX drivers — genuine hi-fi heritage
- DTS:X + Dolby Atmos both supported
- High-res audio streaming (AirPlay 2, Google Cast)
- £200 cashback available via SHS
Cons
- Rear speaker support not yet available
- Premium price point
- KEF ecosystem is smaller than Sonos
4. Sony BRAVIA Theatre Bar 9 — best for Sony TV owners
The Theatre Bar 9 has one compelling advantage that becomes clear the moment you pair it with a compatible Sony BRAVIA TV: Acoustic Centre Sync merges the TV's own speakers with the soundbar's array into a single, wider front stage. The effect is a noticeably larger and more coherent soundstage than either device produces alone — something no other brand in this list replicates with comparable elegance.
Price has significantly improved since launch. Now commonly available from around £899 rather than the original £1,399, the Theatre Bar 9 represents considerably better value than it did at release. Dialogue has always been one of Sony's strengths and remains a highlight here — vocal reproduction is clear, natural and well-positioned even in complex multi-channel mixes.
Pros
- Acoustic Centre Sync — unique Sony TV integration
- Strong dialogue clarity and soundstage width
- DTS:X + Dolby Atmos both supported
- Expandable to full Sony surround system
- Significantly better value at current pricing
Cons
- Only 1× HDMI input
- Large, boxy physical design
- No built-in voice control
5. Marshall Heston 120 — best for style and character
The Heston 120 earns its place on this list through distinctiveness rather than outright performance benchmarks. Its amplifier-inspired design makes it stand out as a piece of furniture — something that you'd willingly show guests rather than hide under a TV unit. At the current price of £699 (reduced from £899), the design premium has effectively disappeared.
One practical advantage worth highlighting: the Heston 120 includes both a dedicated HDMI 2.1 input with 4K passthrough and an RCA line-in for analogue sources including turntables. Neither feature is common at this price, and both significantly expand the soundbar's usefulness as a hub for your whole entertainment setup. Dialogue is clear and well-controlled throughout; bass is present but measured, and a subwoofer can be added later if more weight is needed.
Pros
- Unmistakable Marshall aesthetic
- HDMI 2.1 passthrough — unusual at this price
- RCA line-in for turntable connection
- DTS:X + Dolby Atmos both supported
- £200 price reduction from launch
Cons
- No rear speaker support currently
- More modest bass vs larger systems
- Marshall ecosystem is limited
How to choose the right Dolby Atmos soundbar
After testing all five of these, the honest answer is that the right choice depends on three questions more than anything else:
1. How much does music matter to you?
If you regularly listen to music through your soundbar — not just as background while the TV is on — the KEF XIO is in a different category from everything else here. If movies and TV are your primary use case, the Arc Ultra is better suited.
2. Do you want a single box or a proper surround system?
The Samsung Q990F is the only product here that delivers physical surround sound out of the box. If you want genuine rear-channel separation without building a Sonos multi-component system, it's the most straightforward route.
3. Which TV do you own?
Sony TV owners get meaningful additional features from the BRAVIA Theatre Bar 9 that justify choosing it over alternatives. Samsung TV owners similarly benefit from Q-Symphony with the Q990F.
Smart Home Sounds offers free expert advice before you buy. Their Tech Guides team can help match a soundbar to your room size, TV and budget before you commit — available via phone, live chat or in-store at Cheltenham.