KEF XIO Soundbar
KEF XIO Soundbar
KEF XIO Soundbar
KEF XIO Soundbar
KEF XIO Soundbar
KEF XIO Soundbar
KEF XIO Soundbar
KEF XIO Soundbar
KEF XIO Soundbar
KEF XIO Soundbar
KEF XIO Soundbar
KEF XIO Soundbar
KEF XIO Soundbar
KEF XIO Soundbar

KEF XIO Soundbar

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A Dolby Atmos soundbar from KEF with a 5.1.2 configuration, 12 Class D amplifiers, Uni-Q MX drivers, HDMI eARC and built-in streaming. It comes in Silver Grey or Slate Black.

KEF describes XIO as much more than just a soundbar, designed to elevate your home cinema experience with Dolby Atmos and 5.1.2 spatial audio. KEF says its Music Integrity Engine delivers clear dialogue and vocals.

Configuration
5.1.2
Surround formats
Dolby Atmos, DTS:X
TV connection
HDMI 2.1 eARC
Streaming
AirPlay, Google Cast, Bluetooth 5.3
Amplification
12 x Class D
Size (H × W × D)
70 × 1210 × 165 mm

See the XIO soundbar

Why you will love it

Dolby Atmos, DTS:X and 5.1.2

XIO has five main channels, a subwoofer channel and two overhead channels. KEF says Uni-Q MX and full-range drivers cover the left, centre, right and two surround channels, and Uni-Q MX drivers add height.

It supports Dolby Atmos, DTS:X, Sony 360 Reality Audio and MPEG-H, and can up-mix mono and stereo sources to multi-channel, according to KEF.

KEF XIO soundbar in Slate Black

Uni-Q MX and clear dialogue

Uni-Q MX is a miniature version of KEF's Uni-Q driver array. KEF says it disperses sound widely and evenly so everyone in the room hears the same detail.

Dialogue Mode, in the KEF Connect app or on the remote, enhances vocal frequencies and reduces background noise, says KEF. A Night Mode is also provided for late-night viewing.

Bass from four P185 drivers

Four P185 LF racetrack drivers handle the bass, supported by KEF's patent-pending Velocity Control Technology (VECO). KEF says the P185 performs like a 4 x 4 inch driver at a much reduced height.

For more bass, connect a subwoofer through the RCA subwoofer output, or wirelessly with a KEF subwoofer and the KW2 RX receiver.

KEF XIO soundbar in Silver Grey

Placement sensing

KEF's Intelligent Placement Technology detects nearby objects to understand the room's acoustics. The Music Integrity Engine then adjusts the EQ automatically, says KEF.

XIO can be mounted on the wall or placed on a shelf, and its sensors detect the placement.

Connections and streaming

XIO has HDMI 2.1 eARC, a TOSLINK optical input and RJ45 Ethernet. Wireless streaming is by KEF Connect, AirPlay, Google Cast, UPnP and Bluetooth 5.3, with multiroom via AirPlay 2 and Google Cast.

KEF lists Spotify Connect, Tidal Connect, QPlay, Amazon Music, Qobuz, Deezer, HIGHRESAUDIO and internet radio, depending on service availability.

Connection panel on the back of the KEF XIO soundbar

Controls and design

A touch control panel on top handles power, volume, mute and source. The infrared remote has a customisable favourite button, and the KEF Connect app adds EQ settings.

KEF describes an aluminium top plate and splash-proof fabric. Design is by Ponti Design Studio and the KEF Product Design Team.

Is it right for you?

A great fit if you…

  • Want a single-bar Dolby Atmos and DTS:X setup for a TV
  • Want built-in streaming with AirPlay, Google Cast and Bluetooth
  • Plan to add a KEF subwoofer, wired or wireless
  • Want to mount on a wall or place on a shelf

Worth knowing

  • Connects to the TV by HDMI eARC, so the TV needs an eARC or ARC HDMI port
  • It is 1210mm wide, so check your TV stand or wall space
  • The KW2 RX receiver is needed for a wireless connection to a KEF subwoofer

Build your system

XIO is an all-in-one soundbar that connects to a TV by HDMI eARC.

Specifications

Sound

Frequency response (±3dB, measured at 85dB/1m) 34Hz - 20kHz
Maximum SPL (measured at 1m) 102 dB
Channels Up to 5.1.2
Drive units 2 x 50 mm (2 in) full-range; 4 x 50 x 180 mm (2 x 7 in) P185 LF supported by VECO; Uni-Q MX drivers
Amplifiers 8 x Class D (HF/MF), 4 x Class D (LF)

Connections

Inputs HDMI 2.1 eARC, TOSLINK optical, USB Type-C (service), RJ45 Ethernet
Outputs Wireless subwoofer output, RCA subwoofer output
Supported resolution HDMI eARC up to 192kHz/24-bit; network up to 384kHz/24-bit; optical up to 96kHz/24-bit (depends on source)

Formats and streaming

Supported formats Dolby Atmos, DTS:X, 360 Reality Audio, MPEG-H, FLAC, WAV, AIFF, ALAC, AAC, WMA, MP3, M4A, LPCM, Ogg Vorbis (depends on source device)
Wireless KEF Connect, AirPlay, Google Cast, UPnP, Bluetooth 5.3
Wi-Fi IEEE 802.11a/b/g/n/ac/ax; 2.4 GHz, 5 GHz, 6 GHz
Streaming services Spotify Connect, Tidal Connect, QPlay, Amazon Music, Qobuz, Deezer, HIGHRESAUDIO, internet radio, podcasts (depends on country)

General

Power input 100 - 240VAC, 50/60Hz
Maximum operating power 401 W
Dimensions (H × W × D) 70 × 1210 × 165 mm
Weight 10.5 kg
Finishes Silver Grey, Slate Black

Specifications from KEF Australia's XIO soundbar page, checked November 2026. Supported formats and services depend on the source device and country.

What is in the box

  • XIO soundbar
  • Remote
  • AAA batteries
  • HDMI cable
  • Power cable
  • Wall mounting kit
  • Wall mounting template
  • Product guide

Questions people ask

Does it support Dolby Atmos?

Yes. KEF lists Dolby Atmos and DTS:X, with a 5.1.2 configuration.

How does it connect to a TV?

By HDMI 2.1 eARC. A TOSLINK optical input is also provided.

Can I add a subwoofer?

Yes. Use the RCA subwoofer output, or a KEF subwoofer with the KW2 RX wireless receiver.

Does it stream music?

Yes. KEF lists KEF Connect, AirPlay, Google Cast, UPnP and Bluetooth 5.3, plus services such as Spotify Connect, Tidal Connect, Amazon Music and Qobuz.

Can I wall mount it?

Yes. KEF includes a wall mounting kit and template.

Which finishes are available?

Silver Grey and Slate Black.

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