KEF XIO Soundbar

XIO Soundbar from KEF

Immersive home cinema in a new dimension

Whether it's Oscar-winning films, impressive special effects, or the latest reality show – some scenes deserve to be experienced in full sonic splendor. The XIO soundbar from KEF takes home entertainment to a whole new level, transforming any room into an audiovisual experience center.

Cinematic 3D sound – high fidelity at the highest level

With its powerful 5.1.2 configuration and an output power of 820 watts , the XIO unfolds a soundstage that gives the listener the feeling of being in the middle of the action.

This is made possible by six Uni-Q® MX drivers , four P185 woofers , and innovative technologies such as the Music Integrity Engine® (MIE) for Cinema , Dolby Atmos , DTS:X , Sony 360 Reality Audio , and AirPlay Spatial Audio . Even mono or stereo sources are transformed into an impressive 3D soundstage through advanced upmixing.

Intelligent sound optimization for every environment

Thanks to Intelligent Placement technology, the XIO automatically adapts to its acoustic environment—whether it's placed on a sideboard or mounted on the wall. The integrated calibration tool analyzes the room and always ensures the best possible sound quality.

Crystal-clear dialogues – every word counts

A specially developed dialogue mode emphasizes speech frequencies and minimizes background noise. This ensures conversations remain intelligible even at low volumes or during action-packed scenes – ideal for series, documentaries, and news.

Deep, distortion-free bass in a slim format

The XIO combines two powerful P185 woofers with P-Flex technology , inspired by KEF's renowned KC62 and KC92 subwoofers. The result: powerful, precise bass without annoying vibrations – despite the elegant, flat construction with a racetrack design.

Innovative VECO technology – for sound without compromise

At the heart of the woofers is VECO (Velocity Control) technology , which monitors the cone movement in real time. Dynamic feedback minimizes distortion and compression for an absolutely pure, detailed sound.

Smart, powerful, precise

The Music Integrity Engine for Cinema forms the intelligent heart of the XIO. It processes multi-channel sound, adapts flexibly to different room conditions, and ensures homogenous sound distribution – no matter where you are in the room.

Stream seamlessly – enjoy without limits

The integrated W2 wireless platform enables fast streaming via Spotify Connect, Tidal Connect, QPlay, and many other services. Music in Dolby Atmos or Sony 360 Reality Audio is also reproduced with impressive richness.

Flexibility for modern viewing habits

With HDMI eARC , optical input , and optional wireless subwoofer connection (via KEF KW2 RX), the XIO is equipped to meet all your connectivity needs. For users with the highest demands, the sound can be further enhanced with additional KEF subwoofers.

Easy to use, individually adjustable

Whether via the control panel, remote control, or the KEF Connect app, the XIO puts users in control at all times. Two modes (Normal & Expert) offer individual access to sound profiles such as Dialogue Mode or Night Mode for quiet yet powerful listening.

Minimalist design meets maximum function

The XIO is not only a technical masterpiece, but also an aesthetic statement. Featuring a robust aluminum cover, splash-proof fabric upholstery, and available in either Slate Black or Silver Grey , the soundbar blends elegantly into any home décor. The included wall mounting kit provides additional placement flexibility.

Technical data

Model : XIO Soundbar
Dimensions (H × W × D) : 70 × 1210 × 165 mm
Weight : 10.5 kg

Driver configuration :
– 6 × 50 mm Uni-Q® MX drivers (HT/MT)
– 2 × 50 mm broadband drivers (HT/MT)
– 4 × 50 × 152 mm P185 woofers with VECO technology

Amplifier :
– 8 × Class-D (HT/MT)
– 4 × Class D (TT)
– Total power: 820 W (maximum, short-term total power)

Max. sound pressure level : 102 dB @ 1 m
Frequency response (±3 dB) : 34 Hz – 20 kHz @ 85 dB / 1 m
Multi-channel output : Up to 5.1.2

Entrances :
– HDMI 2.1 eARC
– TOSLINK Optical
– USB-C (Service)
– RJ45 Ethernet

Outputs :
– Wireless subwoofer output
– RCA subwoofer output

Wireless Connectivity :
– KEF Connect
– AirPlay 2
– Google Cast
– UPnP compatible
– Bluetooth 5.3

Streaming services :
– Spotify (Spotify Connect)
– Tidal (Tidal Connect)
– QQ Music (QPlay)
– Amazon Music
– Qobuz
– Deezer
– HIGHRESAUDIO
– Internet radio and podcasts
(Availability depends on the country)

Supported audio formats :
Dolby Atmos, DTS:X, 360 Reality Audio, MPEG-H, FLAC, WAV, AIFF, ALAC, AAC, WMA, MP3, M4A, LPCM, Ogg Vorbis
(depending on the source device)

Supported resolutions :
– HDMI eARC: up to 192 kHz / 24 bit
– Network: up to 384 kHz / 24 bit
– Optical: up to 96 kHz / 24 bit
(depending on the source resolution)

WiFi frequency bands : 2.4GHz / 5GHz / 6GHz
WLAN standards : IEEE 802.11 a/b/g/n/ac/ax
IP protocols : IPv4, IPv6

Power supply :
– 100 – 240 V AC, 50/60 Hz
– Max. power consumption: 400 W
– Standby (ECO mode with WLAN): < 2.0 W
– Standby (without WLAN): < 0.5 W