Brands, Home Audio, KEF, Soundbars
KEF Dolby Atmos Soundbar(XIO)
Price Drop Alert
- Powered by a 5.1.2 configuration with spatial audio support such as Dolby Atmos, DTS:X, Sony 360 Reality Audio
- 12 class D amplifiers delivers KEF HiFi performance in one soundbar
- Superior mid-range performance for clear, crisp dialogue and vocal
- Up-mixing technology converts audio from mono/stereo sources into multi-channel
- Intelligent Placement Technology (IPT) optimises sound output regardless of the placement
- P185 LF driver with P-Flex technology for deep and detailed bass while remaining a slim profile
- Uni-Q MX driver array delivers crisp, accurate audio across the entire room
- Velocity Control Technology (VECO) delivers clean, undistorted bass
- Stream music including Spotify, Tidal, QPlay, Amazon Music, and more
$2,799.00Check Availability
WHAT HI-FI? 5 STARS
“The KEF XIO is a soundbar of rare all-round ability that delivers movies and music with spectacle and finesse.” – 07/2025
XIO captures KEF’s audio mastery, bringing your sound to life in one sleek design. Designed to deliver pristine, high-fidelity audio, our soundbar ensures that every note and nuance is reproduced with extraordinary clarity and depth.
Whether you’re enjoying films, shows, or streaming music, cutting-edge technology surrounds you with rich, detailed soundscapes with Dolby Atmos and 5.1.2 spatial audio, creating transcendent cinematic soundscapes that perfectly complement your television.
With its elegant design, XIO integrates seamlessly into any decor, enhancing your home audio system with both style and unmatched sound quality.
Summary of Features
- Powered by a 5.1.2 configuration with spatial audio support such as Dolby Atmos, DTS:X, Sony 360 Reality Audio
- 12 class D amplifiers delivers KEF HiFi performance in one soundbar
- Superior mid-range performance for clear, crisp dialogue and vocal
- Up-mixing technology converts audio from mono/stereo sources into multi-channel
- Intelligent Placement Technology (IPT) optimises sound output regardless of the placement
- P185 LF driver with P-Flex technology for deep and detailed bass while remaining a slim profile
- Uni-Q MX driver array delivers crisp, accurate audio across the entire room
- Velocity Control Technology (VECO) delivers clean, undistorted bass
- Stream music including Spotify, Tidal, QPlay, Amazon Music, and more
- Wired connectivity includes HDMI eARC, optical, and the option of RCA subwoofer output
- Pair any KEF subwoofer wirelessly with the KW2 RX receiver
- Complete control through the top panel, remote or KEF Connect app
- Two-way placement: wall-mounted or on shelf/cabinet
- Available in Silver Grey and Slate Black
Transcendent Cinematic Sound
All-in-One performance.
Delivering hyper-realistic, high-resolution sound, XIO creates a truly cinematic audio experience through a 5.1.2 configuration and 12 Class D amplifiers.
- Five Main Channels: Three Uni-Q MX drivers and two full-range drivers support the left, centre, right, left surround, and right surround channels, creating an expansive soundstage that delivers remarkably realistic audio throughout the room.
- Subwoofer Channel: Powered by four P185 LF drivers, it ensures impactful bass that enriches your sound. This high aspect ratio racetrack performs like a 4 x 4” driver at a much-reduced height, delivering deep, detailed bass.
- Two Overhead Channels: Supported by 2 Uni-Q MX drivers, these add height to your sound, amplifying sound effects for truly immersive experiences.
High-fidelity spatial audio.
With KEF’s Music Integrity Engine (MIE) for Cinema, XIO supports Dolby Atmos, DTS:X, and Sony 360 Reality Audio, and its advanced up-mixing technology intelligently expands the soundstage, converting mono and stereo sources into a rich, spatialised audio environment.
- Dolby Atmos: This popular spatial audio format places sounds in specific locations in a three-dimensional space. This gives you the impression that sound moves around you — like a bullet in your favourite Netflix thriller whizzing right past your shoulder.
- DTS:X: This format also uses object-based audio to create immersive surround sound that moves around you. With DTS:X technology rain sounds like it is falling from ceiling to floor rather than just being heard above. Experience it through IMAX Enhanced on Disney+.
- Sony 360 Reality Audio: Surrounds you in captivating sound, bringing audio to life like never before. Experience music as the artist intended and feel as if you’re at a live concert.
- Up-mixing of Mono/Stereo: This virtualisation technology converts audio from mono/stereo sources into multi-channel, expanding the soundstage and creating an immersive audio experience.
Pristine dialogue and exceptional vocal clarity.
Midrange clarity is key to an exceptional home entertainment experience, and XIO ensures that every word is heard with remarkable detail. A dedicated Dialogue Mode within the EQ presets enhances vocal frequencies while reducing background noise, making speech effortlessly clear. Exceptional sound imaging delivers audio performance that rivals KEF’s renowned HiFi speaker systems, so that whether it’s a whispered conversation or a soaring musical score, every nuance is faithfully reproduced.
Pioneering Technology
Precision where it counts.
The XIO features six Uni-Q MX drivers, the miniature version of KEF’s iconic Uni-Q technology. These drivers ensure a balanced soundstage, delivering crisp, accurate audio across the entire room. The decoupler, engineered as a precise crossover, separates the LF cone and HF tweeter dome, a design that allows the diaphragm to move freely at low frequencies while isolating the dome for high-frequency precision. As a result, the XIO delivers full-bodied, high-fidelity sound for everyone to enjoy no matter where they are in the room.
Deep, detailed bass in a slim profile.
XIO’s P185 LF driver, enhanced with KEF’s P-Flex technology, ensures deep and detailed bass performance, offering a level of clarity and power rarely found in a soundbar. The high-aspect-ratio racetrack design (18cm/7″ x 5cm/2″) enables an ultra-slim profile while delivering performance equivalent to a 4” LF driver. The ample cabinet space allows for twin P185 drivers to be positioned back-to-back in a force-cancelling configuration that significantly reduces mechanical vibrations. This results in a pure and resonant low-frequency response, free from unwanted distortions. Adapted from KEF’s award-winning KC62 and KC92 subwoofers, P-Flex technology resists acoustic pressure within the cabinet, enabling the driver to move with greater precision and achieving deeper bass extension with remarkable clarity.
Revolutionary sound correction.
KEF’s patent-pending Velocity Control Technology (VECO) is the game-changing built-in sensor at the heart of the P185 LF driver. VECO monitors cone motion in real-time and employs a negative feedback loop to minimise distortion and compression. This ensures that the signal reaching the driver’s voice coil includes the intended musical signal alongside a correction for any deviations in the driver’s motion, maintaining system stability. As a result, distortion is significantly reduced, delivering pristine, undistorted clarity.
Smart and powerful.
The mastermind behind KEF’s signature sound, Music Integrity Engine (MIE) for Cinema is our in-house written suite of DSP algorithms specially tuned for XIO that offers multi-channel processing, virtualization and adaptive placement capability. Users benefit from immersive soundscapes that enhance movie watching and the ability to enjoy consistent audio quality regardless of the soundbar’s placement.
Intelligent placement.
Intelligent Placement Technology (IPT) ensures consistent performance. It detects nearby objects to understand the surrounding acoustics. After gathering this data, the MIE algorithm automatically adjusts the EQ for enhanced audio output.
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