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Product Description

Line Circle
The KEF XIO soundbar, a slim 5.1.2 system that unleashes Dolby Atmos-ready spatial sound and 820 W of instantaneous power. Six Uni-Q MX drivers, four P185 woofers with VECO, and KEF’s Music Integrity Engine turn any show, movie, or playlist into a hyper-realistic sonic event. Intelligent Placement Technology auto-calibrates performance whether wall-mounted or shelf-mounted, while HDMI eARC, Wi-Fi 6, AirPlay 2, Chromecast, and Bluetooth 5.3 simplify connectivity. Finished in premium Silver Grey or Slate Black, the XIO delivers cinema-grade immersion without cluttering your living room.
Get the Details

Features & Specs Line Circle

True 5.1.2 Immersion in One Bar
Three front Uni-Q MX arrays, two height channels, and twin full-range surrounds reproduce a dome of sound that follows on-screen action for breathtaking Dolby Atmos and DTS:X realism.
Engineered for Power and Precision
Twelve discrete Class-D amplifiers (820 W total) individually drive each driver for uncompromising dynamics, head-room, and control.
Bass You Can Feel, Not See
Four P185 racetrack woofers use P-Flex surrounds and VECO motion sensing to deliver 34 Hz extension, high SPL, and near-zero distortion - without a bulky external sub.
Room-Smart Tuning & Smart EQ
Intelligent Placement Technology plus selectable Dialogue and Night modes adapt output to your space, content, and listening time.
Future-Proof Connectivity
HDMI 2.1 eARC passes up to 192 kHz/24-bit lossless sound; Wi-Fi 6 with AirPlay 2, Chromecast, and KEF Connect app put every service at your fingertips.
Sleek, Durable Design
A bead-blasted aluminum top plate, splash-proof fabric, and two understated finishes let XIO blend seamlessly into modern interiors.
True 5.1.2 Immersion in One Bar
Three front Uni-Q MX arrays, two height channels, and twin full-range surrounds reproduce a dome of sound that follows on-screen action for breathtaking Dolby Atmos and DTS:X realism.
Engineered for Power and Precision
Twelve discrete Class-D amplifiers (820 W total) individually drive each driver for uncompromising dynamics, head-room, and control.
Bass You Can Feel, Not See
Four P185 racetrack woofers use P-Flex surrounds and VECO motion sensing to deliver 34 Hz extension, high SPL, and near-zero distortion - without a bulky external sub.
Room-Smart Tuning & Smart EQ
Intelligent Placement Technology plus selectable Dialogue and Night modes adapt output to your space, content, and listening time.
Future-Proof Connectivity
HDMI 2.1 eARC passes up to 192 kHz/24-bit lossless sound; Wi-Fi 6 with AirPlay 2, Chromecast, and KEF Connect app put every service at your fingertips.
Sleek, Durable Design
A bead-blasted aluminum top plate, splash-proof fabric, and two understated finishes let XIO blend seamlessly into modern interiors.

Expert Insight

Line Circle

The KEF XIO Soundbar is the first soundbar that I've heard and loved. The imaging is unreal and the bass is massive for a soundbar of this size. In my opinion, this is the best soundbar on the market.

Expert Img
Nate M
Brand Manager

Details

Line Circle

KEF XIO 5.1.2 Channel Sound Bar with Dolby Atmos

Transform every movie night, game session, or playlist into an immersive 3-D soundscape with the KEF XIO. Beneath its minimalist aluminum shell lies a full 5.1.2-channel system driven by 12 Class-D amplifiers and KEF’s latest acoustic breakthroughs - including KEF's Uni-Q® MX arrays for pinpoint imaging, P185 racetrack woofers with P-Flex surrounds for surprisingly deep bass, and patent-pending Velocity Control Technology (VECO) for distortion-free low-end slam. Dolby Atmos®, DTS:X®, Sony 360 Reality Audio, and KEF’s own Music Integrity Engine™ upscale any stereo or multichannel track into room-filling, high-resolution spatial audio. Intelligent Placement Technology automatically tunes the bar whether it’s wall-mounted or shelf-mounted, while the KEF Connect app, HDMI eARC, Wi-Fi 6, AirPlay 2, Chromecast built-in, Bluetooth 5.3, and wireless subwoofer support keep you in complete control. All of this power comes wrapped in splash-proof fabric in your choice of Silver Grey or Slate Black - elegance you’ll be proud to leave on display.

KEF XIO Soundbar Key Features:

  • 5.1.2 spatial-audio architecture with support for Dolby Atmos, DTS:X and Sony 360 Reality Audio
  • Twelve discrete Class-D amplifiers deliver KEF-grade Hi-Fi performance from a single soundbar
  • Superior mid-range clarity for crisp, intelligible dialogue and vocals
  • Up-mixing engine converts mono or stereo sources into immersive multi-channel sound
  • Intelligent Placement Technology (IPT) automatically optimises output whether wall- or shelf-mounted
  • Slim P185 low-frequency driver with P-Flex technology produces deep, detailed bass
  • Uni-Q MX driver array disperses accurate audio evenly across the entire room
  • Velocity Control Technology (VECO) keeps bass clean and distortion-free
  • Stream music from Spotify, Tidal, QPlay, Amazon Music and many more services
  • Versatile wired inputs: HDMI eARC, optical TOSLINK, plus optional RCA subwoofer output
  • Wirelessly pair any KEF subwoofer via the KW1 Wireless Subwoofer Adapter Kit.
  • Complete control from the top-panel buttons, included remote, or the KEF Connect app
  • Two-way installation: wall-mount or shelf/cabinet placement
  • Available in Silver Grey and Slate Black finishes

KEF XIO Soundbar Full Specifications:

  • Model: XIO
  • Dimensions (H × W × D): 70 × 1210 × 165 mm (2.8 × 47.6 × 6.5 in)
  • Weight: 10.5 kg (23.1 lb)
  • Drive Units:
    • 6 × 50 mm Uni-Q MX
    • 2 × 50 mm full-range
    • 4 × 50 × 180 mm P185 woofers supported by VECO
  • Amplifiers:
    • 8 × Class-D (HF/MF)
    • 4 × Class-D (LF)
  • Maximum SPL @ 1 m: 102 dB
  • Frequency Response (±3 dB): 34 Hz – 20 kHz
  • Inputs: HDMI 2.1 eARC
    • Optical (TOSLINK)
    • USB-C (service)
    • RJ-45 Ethernet
  • Outputs:
    • Wireless subwoofer out
    • RCA subwoofer out
  • Wireless Connectivity:
    • KEF Connect • AirPlay 2 • Google Cast • UPnP • Bluetooth 5.3
  • Streaming Services: Spotify Connect • TIDAL Connect • QQ Music • Amazon Music • Qobuz • Deezer • HIGHRESAUDIO • Internet Radio • Podcasts …and more
  • Supported Formats: Dolby Atmos, DTS:X, 360 Reality Audio, MPEG-H, FLAC, WAV, AIFF, ALAC, AAC, WMA, MP3, M4A, LPCM, Ogg Vorbis
  • Resolution Support: HDMI eARC ≤ 192 kHz/24-bit • Network ≤ 384 kHz/24-bit • Optical ≤ 96 kHz/24-bit
  • Channels: Up to 5.1.2
  • Wi-Fi: 2.4 / 5 / 6 GHz • IEEE 802.11 a/b/g/n/ac/ax • IPv4 & IPv6
  • Amplifier Output Power: 820 W instantaneous total
  • Power Input: 100 – 240 V AC 50/60 Hz
  • Power Consumption: 400 W max • < 2 W (Eco standby) • < 0.5 W (non-Wi-Fi standby)
  • Finishes: Silver Grey • Slate Black

KEF XIO Soundbar Q&A:

Will the XIO work with my current TV?
Yes - connect the soundbar to any TV that has an HDMI eARC or optical output; HDMI eARC unlocks the highest-resolution formats for full Dolby Atmos sound.
Do I need a separate subwoofer?
The XIO’s four P185 woofers reach 34 Hz for most rooms, but you can wirelessly add any KEF subwoofer via the KW1 Wireless Subwoofer Adapter Kit for even deeper impact.
How does Intelligent Placement Technology (IPT) help me?
IPT automatically measures nearby walls and surfaces, then adjusts EQ so the bar sounds balanced whether it’s on a shelf or mounted under the TV.
Can I stream music directly from my phone?
Absolutely - use AirPlay 2 on iOS, Google Cast on Android, Bluetooth 5.3, or the KEF Connect app for lossless streaming from Spotify, TIDAL, Qobuz, and more.
Is wall-mounting hardware included?
Yes, a slim wall-mount bracket and screws are in the box so you can install the bar flush under your screen.
What firmware updates are available?
KEF pushes over-the-air updates via Wi-Fi on the KEF Connect app; you’ll receive notifications in the KEF Connect app and can install them with a single tap.
What finishes are available?
The XIO comes in Silver Grey and Slate Black, both with a durable, splash-resistant fabric wrap.

KEF XIO Soundbar Downloads:

KEF XIO Soundbar Information Sheet

Reviews

Line Circle
Product Descriptiondown arrow

Product Description

Line Circle
The KEF XIO soundbar, a slim 5.1.2 system that unleashes Dolby Atmos-ready spatial sound and 820 W of instantaneous power. Six Uni-Q MX drivers, four P185 woofers with VECO, and KEF’s Music Integrity Engine turn any show, movie, or playlist into a hyper-realistic sonic event. Intelligent Placement Technology auto-calibrates performance whether wall-mounted or shelf-mounted, while HDMI eARC, Wi-Fi 6, AirPlay 2, Chromecast, and Bluetooth 5.3 simplify connectivity. Finished in premium Silver Grey or Slate Black, the XIO delivers cinema-grade immersion without cluttering your living room.
Get the Details
Features & Specsdown arrow

Features & Specs Line Circle

True 5.1.2 Immersion in One Bar
Three front Uni-Q MX arrays, two height channels, and twin full-range surrounds reproduce a dome of sound that follows on-screen action for breathtaking Dolby Atmos and DTS:X realism.
Engineered for Power and Precision
Twelve discrete Class-D amplifiers (820 W total) individually drive each driver for uncompromising dynamics, head-room, and control.
Bass You Can Feel, Not See
Four P185 racetrack woofers use P-Flex surrounds and VECO motion sensing to deliver 34 Hz extension, high SPL, and near-zero distortion - without a bulky external sub.
Room-Smart Tuning & Smart EQ
Intelligent Placement Technology plus selectable Dialogue and Night modes adapt output to your space, content, and listening time.
Future-Proof Connectivity
HDMI 2.1 eARC passes up to 192 kHz/24-bit lossless sound; Wi-Fi 6 with AirPlay 2, Chromecast, and KEF Connect app put every service at your fingertips.
Sleek, Durable Design
A bead-blasted aluminum top plate, splash-proof fabric, and two understated finishes let XIO blend seamlessly into modern interiors.
True 5.1.2 Immersion in One Bar
Three front Uni-Q MX arrays, two height channels, and twin full-range surrounds reproduce a dome of sound that follows on-screen action for breathtaking Dolby Atmos and DTS:X realism.
Engineered for Power and Precision
Twelve discrete Class-D amplifiers (820 W total) individually drive each driver for uncompromising dynamics, head-room, and control.
Bass You Can Feel, Not See
Four P185 racetrack woofers use P-Flex surrounds and VECO motion sensing to deliver 34 Hz extension, high SPL, and near-zero distortion - without a bulky external sub.
Room-Smart Tuning & Smart EQ
Intelligent Placement Technology plus selectable Dialogue and Night modes adapt output to your space, content, and listening time.
Future-Proof Connectivity
HDMI 2.1 eARC passes up to 192 kHz/24-bit lossless sound; Wi-Fi 6 with AirPlay 2, Chromecast, and KEF Connect app put every service at your fingertips.
Sleek, Durable Design
A bead-blasted aluminum top plate, splash-proof fabric, and two understated finishes let XIO blend seamlessly into modern interiors.
Expert Insightdown arrow

Expert Insight

Line Circle

The KEF XIO Soundbar is the first soundbar that I've heard and loved. The imaging is unreal and the bass is massive for a soundbar of this size. In my opinion, this is the best soundbar on the market.

Expert Img
Nate M
Brand Manager
Detailsdown arrow

Details

Line Circle

KEF XIO 5.1.2 Channel Sound Bar with Dolby Atmos

Transform every movie night, game session, or playlist into an immersive 3-D soundscape with the KEF XIO. Beneath its minimalist aluminum shell lies a full 5.1.2-channel system driven by 12 Class-D amplifiers and KEF’s latest acoustic breakthroughs - including KEF's Uni-Q® MX arrays for pinpoint imaging, P185 racetrack woofers with P-Flex surrounds for surprisingly deep bass, and patent-pending Velocity Control Technology (VECO) for distortion-free low-end slam. Dolby Atmos®, DTS:X®, Sony 360 Reality Audio, and KEF’s own Music Integrity Engine™ upscale any stereo or multichannel track into room-filling, high-resolution spatial audio. Intelligent Placement Technology automatically tunes the bar whether it’s wall-mounted or shelf-mounted, while the KEF Connect app, HDMI eARC, Wi-Fi 6, AirPlay 2, Chromecast built-in, Bluetooth 5.3, and wireless subwoofer support keep you in complete control. All of this power comes wrapped in splash-proof fabric in your choice of Silver Grey or Slate Black - elegance you’ll be proud to leave on display.

KEF XIO Soundbar Key Features:

  • 5.1.2 spatial-audio architecture with support for Dolby Atmos, DTS:X and Sony 360 Reality Audio
  • Twelve discrete Class-D amplifiers deliver KEF-grade Hi-Fi performance from a single soundbar
  • Superior mid-range clarity for crisp, intelligible dialogue and vocals
  • Up-mixing engine converts mono or stereo sources into immersive multi-channel sound
  • Intelligent Placement Technology (IPT) automatically optimises output whether wall- or shelf-mounted
  • Slim P185 low-frequency driver with P-Flex technology produces deep, detailed bass
  • Uni-Q MX driver array disperses accurate audio evenly across the entire room
  • Velocity Control Technology (VECO) keeps bass clean and distortion-free
  • Stream music from Spotify, Tidal, QPlay, Amazon Music and many more services
  • Versatile wired inputs: HDMI eARC, optical TOSLINK, plus optional RCA subwoofer output
  • Wirelessly pair any KEF subwoofer via the KW1 Wireless Subwoofer Adapter Kit.
  • Complete control from the top-panel buttons, included remote, or the KEF Connect app
  • Two-way installation: wall-mount or shelf/cabinet placement
  • Available in Silver Grey and Slate Black finishes

KEF XIO Soundbar Full Specifications:

  • Model: XIO
  • Dimensions (H × W × D): 70 × 1210 × 165 mm (2.8 × 47.6 × 6.5 in)
  • Weight: 10.5 kg (23.1 lb)
  • Drive Units:
    • 6 × 50 mm Uni-Q MX
    • 2 × 50 mm full-range
    • 4 × 50 × 180 mm P185 woofers supported by VECO
  • Amplifiers:
    • 8 × Class-D (HF/MF)
    • 4 × Class-D (LF)
  • Maximum SPL @ 1 m: 102 dB
  • Frequency Response (±3 dB): 34 Hz – 20 kHz
  • Inputs: HDMI 2.1 eARC
    • Optical (TOSLINK)
    • USB-C (service)
    • RJ-45 Ethernet
  • Outputs:
    • Wireless subwoofer out
    • RCA subwoofer out
  • Wireless Connectivity:
    • KEF Connect • AirPlay 2 • Google Cast • UPnP • Bluetooth 5.3
  • Streaming Services: Spotify Connect • TIDAL Connect • QQ Music • Amazon Music • Qobuz • Deezer • HIGHRESAUDIO • Internet Radio • Podcasts …and more
  • Supported Formats: Dolby Atmos, DTS:X, 360 Reality Audio, MPEG-H, FLAC, WAV, AIFF, ALAC, AAC, WMA, MP3, M4A, LPCM, Ogg Vorbis
  • Resolution Support: HDMI eARC ≤ 192 kHz/24-bit • Network ≤ 384 kHz/24-bit • Optical ≤ 96 kHz/24-bit
  • Channels: Up to 5.1.2
  • Wi-Fi: 2.4 / 5 / 6 GHz • IEEE 802.11 a/b/g/n/ac/ax • IPv4 & IPv6
  • Amplifier Output Power: 820 W instantaneous total
  • Power Input: 100 – 240 V AC 50/60 Hz
  • Power Consumption: 400 W max • < 2 W (Eco standby) • < 0.5 W (non-Wi-Fi standby)
  • Finishes: Silver Grey • Slate Black

KEF XIO Soundbar Q&A:

Will the XIO work with my current TV?
Yes - connect the soundbar to any TV that has an HDMI eARC or optical output; HDMI eARC unlocks the highest-resolution formats for full Dolby Atmos sound.
Do I need a separate subwoofer?
The XIO’s four P185 woofers reach 34 Hz for most rooms, but you can wirelessly add any KEF subwoofer via the KW1 Wireless Subwoofer Adapter Kit for even deeper impact.
How does Intelligent Placement Technology (IPT) help me?
IPT automatically measures nearby walls and surfaces, then adjusts EQ so the bar sounds balanced whether it’s on a shelf or mounted under the TV.
Can I stream music directly from my phone?
Absolutely - use AirPlay 2 on iOS, Google Cast on Android, Bluetooth 5.3, or the KEF Connect app for lossless streaming from Spotify, TIDAL, Qobuz, and more.
Is wall-mounting hardware included?
Yes, a slim wall-mount bracket and screws are in the box so you can install the bar flush under your screen.
What firmware updates are available?
KEF pushes over-the-air updates via Wi-Fi on the KEF Connect app; you’ll receive notifications in the KEF Connect app and can install them with a single tap.
What finishes are available?
The XIO comes in Silver Grey and Slate Black, both with a durable, splash-resistant fabric wrap.

KEF XIO Soundbar Downloads:

KEF XIO Soundbar Information Sheet

Reviewsdown arrow

Reviews

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