KEF XIO
The KEF XIO is a 5.1.2-channel sound system designed to deliver spatial sound from a single unit. The first soundbar from KEF, the KEF XIO, features 12 Class D amplifiers and supports formats such as Dolby Atmos, DTS:X, and Sony 360 Reality Audio, ensuring compatibility with a wide range of immersive audio content.
Features:
- 5.1.2 configuration
- Dolby Atmos, DTS:X, and Sony 360 Reality Audio
- 12 Class D amplifiers with total power of 820W
- Uni-Q MX - mini version of KEF's iconic UniQ coaxial driver
- Connections: Ethernet, Wi-Fi 2.4GHz / 5GHz / 6GHz
- Network support 24-bit / 384kHz
- Slim design with vertical profile
- Velocity Control Technology from KEF helps control distortion and dynamic compression
- Sound adaptation for device placement and room environment with IPT technology
- Supports AirPlay, Google Cast, UPnP, Bluetooth 5.3, and streaming from services like Spotify, Tidal, Qobuz, Deezer, and more
- HDMI eARC, optical, and RCA inputs
- Outputs: wireless and wired subwoofer
With 5.1.2-channel playback, the soundbar allows you to position sound in three-dimensional space, including overhead effects, without the need for external speakers. The device's housing accommodates drivers configured to deliver full-range sound without additional speakers, although an additional subwoofer can be added if needed. Connection options include HDMI eARC, optical input, and RCA output for subwoofer. Wireless connectivity is achieved through KEF's W2 platform, supporting streaming.
Uni-Q MXM Technology
The KEF XIO soundbar is equipped with six Uni-Q MX drivers, a compact version of KEF's well-established UniQ array designed for even sound distribution throughout the room. The low-frequency output is handled by a pair of P185 LF drivers using P-Flex suspensions arranged in a force-canceling configuration to reduce vibrations and housing distortions.
Deep Excursion with P-Flex System
The P-Flex system, adapted from KEF's KC62 and KC92 subwoofers, provides greater driver excursion under pressure, contributing to deeper bass extension. KEF's VECO (Velocity Control Technology) is used for controlling the motion of the driver and applying corrective feedback to reduce distortions. The soundbar includes Intelligent Placement Technology (IPT), a calibration function that adjusts output based on room surroundings and positioning. Pre-set modes are available, including a dialogue mode that enhances vocal clarity and others for nighttime use and music playback.
Dual Device Placement Options
When placed on a stand to create upward-firing Atmos channels, the soundbar will only use two drivers, but when wall-mounted, the "top" will face the user, and the third driver will become the center channel. KEF claims that the panel knows how it is positioned and will adjust the driver output accordingly. These drivers are paired with two pairs of P185 LF bass drivers arranged back to back in two positions along the panel. These ultra-thin, high aspect ratio woofers use KEF's P-Flex technology, also used in the compact subwoofers KC62 and KC92, to create force-canceling, reducing mechanical vibrations caused by low frequencies in such a small enclosure.
Minimal Distortion
A part of KEF's technology involved here is the patented Velocity Control Technology sensor, which, according to Okli-Brown, has finally emerged from the R&D phase after "six or seven years." It works alongside digital distortion correction and is built into the subwoofer for physical control of its motion. This can then better inform the electronics about what is actually happening in the enclosure and help further minimize distortion and compression.
Broad Sound Format Support
In addition to Atmos, the KEF XIO supports DTS:X and Sony 360 Reality Audio, and features an eARC HDMI port for TV connection (yes, only one - you will have to switch on the TV itself, which is somewhat unusual for this price range), optical input for other devices (please do not buy this soundbar and connect it to the TV using an optical cable - this is an outdated connection that won't unleash the full potential of Xio), subwoofer output, and Bluetooth pairing button.
Convenient Control Options
Users can control the KEF XIO Soundbar using the top panel, remote control, or the KEF Connect app. The app includes standard and advanced EQ options, allowing for manual adjustments in addition to pre-set modes. During setup through the KEF Connect app, you will also be able to connect this soundbar to your home Wi-Fi network (Ethernet is also available if you prefer). This will enable you to use your choice of Spotify, Tidal, and Qobuz Connect, GoogleCast, or Apple AirPlay 2 for high-quality music playback via Wi-Fi on the soundbar.
Exclusive App
The app is also where you can access features such as Xio calibration without clutter in the room, select sound profile (Default, Music, Movie, Night, Dialogue, and Live), set timers, and choose sources. The package includes a remote control (and a few buttons on the sound panel if you need them), but you won't find much use for it if you have the KEF Connect app handy.
Expandable subwoofer capability with an additional KW2 RX receiver which provides wireless pairing with compatible KEF subwoofers. The KEF XIO soundbar features an aluminum top plate and fabric cover. It is available in Slate Black and Silver Grey colors, with the option to mount on a shelf or wall. Despite its slim profile, the soundbar is designed to provide relatively extended bass response through internal low-frequency drivers.
Package includes:
- Subwoofer
- Remote control
- Power cable
- Manual
KEF KW1 Kit
Wireless Subwoofer Adapter Kit
Comprising a discreet transmitter and receiver, KEF KW1 works with the Kube, KC62 and KC92 subwoofers. It allows KEF subs to be optimally placed, and not limited by cables. High-quality wireless transmission delivers every ounce of detail and impact from your favourite films and music. The receiver is also available separately, allowing two KEF subwoofers to receive the same signal wirelessly from the same transmitter.
Key Features:
- Lossless Audio: 5.2 & 5.8GHz selectable digital wireless link for near lossless audio
- Advanced Algorithm: Advanced RF Selection Algorithm
- Wide Range: Up to 15 metre (30M/ 100 ft line of sight) operational distance between transmitter and receiver
- Low Latency: Designed with latency of <17ms
- High Performance: 24-bit 48KHz high resolution audio for pristine performance
Performance with convenience
KW1 operates in the high-bandwidth 5GHz band and delivers audio up to 24bit/48kHz. The transmitter is powered by USB, while the receiver is powered directly by the subs expansion port. Pairing is intuitive and highly stable, while a range of up to 30m (line of sight) makes placement easy. KW1 is also perfectly suited for use with KEF's LSX II LT, LSX II, LS50 Wireless II and LS60 Wireless.
In the Box:
- Transmitter and Receiver;
- Manual
KC62 subwoofer
The KC62 subwoofer is versatile and equally effective for music listening, movie watching, or video gaming. With its 1000-watt power output, the KC62 surpasses the traditional expectations of what a subwoofer of its size can achieve.
The built-in processor includes signal processing algorithms and five preset room placement equalization options, allowing you to optimize the performance of the KEF KC62 regardless of where you place it in the room - whether it's next to a wall, in a corner, inside a cabinet, or on an open platform. There's also a mode for fine-tuning to suit your specific room characteristics.
The presence of a linear high-frequency output means that the KEF KC62 subwoofer can be used alongside external active speakers, such as the popular KEF LS50 bookshelf monitors or the wireless KEF LSX.
Uni-Core Technology
Uni-Core technology features a unique design with a dual-driver configuration. Two sound coils of different diameters share a common center and utilize a shared space inside the driver. Despite its smaller dimensions, Uni-Core technology allows for the same or greater driver excursion compared to much larger subwoofers that surpass the KC62 in size.
P-Flex Surround, or Origami Surround
P-Flex Surround technology, also known as Origami Surround, draws inspiration from the art of origami. This has led KEF engineers to create a diffuser with a folded (corrugated) surround. It effectively handles internal sound pressure within the speaker enclosure without sacrificing sensitivity.
Smart Distortion Control
Smart Distortion Control technology reduces nonlinear distortions utilizing a principle similar to electromechanical feedback systems. However, instead of using special sensors, it measures the current in the sound coil, enabling instantaneous compensation for any detected nonlinear distortions.
Specifications:
- Dual 6.5-inch Uni-Core driver array
- Pressure-resistant aluminum P-Flex enclosure
- Smart Distortion Control technology
- Music Integrity Engine with iBX, SmartLimiter, and Room Placement settings
- Power amplifier: 1000 W RMS (2 x 500 W) Class D
- Frequency response: 11-200 Hz (± 3 dB)
- Maximum output signal: 105 dB
Package includes:
- Subwoofer
- Power cable
- Documentation
