KEF XIO Soundbar

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