KEF LS50 WIRELESS II

The multi-award winning LS50 Wireless sets the bar high for high-performance wireless speakers, and in the
same spirit of invention and innovation that created the original, the LS50 Wireless II is much more than just
a new generation.

The result of three years intensive research and development, the new KEF LS50 Wireless II is a fully active
wireless stereo speaker system that delivers pristine, KEF signature sound coupled with great usability
and high-performance wireless capability. LS50 Wireless II has been built on a whole new acoustic platform,
the LS50 Meta passive loudspeakers, while the brand-new wireless platform has been engineered from
the ground up. Active electronics, Digital Signal Processing (DSP), wireless streaming platform and the new
KEF Connect app all combine to set a new benchmark of class-leading acoustic and user experience.

FREEDOM
All the music, all the time

The new wireless platform that sits at the digital heart of the LS50 Wireless II ensures that no matter
how you like to listen to your music, you will be able to do so with the minimum of fuss and in fantastic
sound quality. LS50 Wireless II gives you direct access to your favourite music services, including Spotify
(via Spotify Connect), Tidal, Amazon Music, Qobuz and Deezer. You can even tune in to Internet Radio
Stations and catch up on the latest podcasts through the KEF Connect app. AirPlay 2 and Google
Chromecast seamlessly connects your compatible Apple or Android device, whilst Bluetooth expands the
options even further. There are also wired connections for your TV, turntable, CD player and games console,
via the HDMI, analogue, optical and coaxial inputs.
LS50 Wireless II has audiophiles covered with support for streaming music files up to 24bit/384kHz,
as well as MAQ, DSD256, and ROON Ready (coming soon). These features mean that even the experienced
hifi enthusiast will marvel at this exceptional loudspeaker’s ability; LS50 Wireless II really does offer
something to everybody.

USER-CENTRED
Let you be you

Even beyond the flawless musical performance, the LS50 Wireless II is a breeze to set up, intuitive to use
and offers over-the-air firmware updates for bringing you new and improved features with the minimum of
fuss. You can choose to connect the speakers with the supplied cable (24bit/192kHz resolution) or wirelessly
(with 24bit/96kHz resolution) for a completely clutter-free set up. You can even select your favourite source
to wake up LS50 Wireless II whenever it comes on, giving you immediate access to your favourite source.
Plus, when using AirPlay 2, Chromecast or ROON (coming soon) you can stream to multiple speakers, so you
can play music all over your house. The brand-new dedicated KEF Connect app walks you through the
set-up and controls the system on a day-to-day basis, including intuitive sound settings, so you can tune
LS50 Wireless II to your own personal tastes.

PERFORMANCE
Most accurate, immersive sound

When it comes to physical technology, LS50 Wireless II takes its lead from KEF’s LS50 Meta passive
loudspeakers. A truly revolutionary tool in the KEF acoustic armoury, Metamaterial Absorption Technology1
(MAT) is a highly complex maze-like structure, where each of the intricate channels efficiently absorbs
a specific frequency. When combined, the channels act as an acoustic black hole, absorbing 99% of the
unwanted sound that comes from the rear of the tweeter, eliminating the resulting distortion and providing
a purer, more natural sound

KEF’s Uni-Q point source configuration delivers a more detailed, accurate and integrated three-dimensional
sound image, which is dispersed so evenly throughout the room that the ‘sweet spot’ is wherever you are
in the room. Using simulation and analysis tools, our engineers have developed the 12th generation Uni-Q
with MAT driver array, to reduce high-frequency distortion in the mid-frequency driver. The result is reduced
coloration, less distortion and a sound that is more transparent and life-like than previously possible. The
other frequencies are equally well served, with crystal clear midrange and room-filling, deep and articulate
bass.

The performance of LS50 Wireless II is aided by KEF’s bespoke Music Integrity Engine, a cutting-edge
collection of bespoke Digital Signal Processing algorithms optimised for the new Uni-Q with MAT driver
array, enabling it to deliver a perfectly timed performance, for better imaging and a tighter, unsmeared
sound.

LS50 Wireless II also has plenty of power on tap. Each tweeter benefits from being driven by a new 100W
class A/B amplifier that delivers a smooth, incredibly detailed treble performance. Dedicated 280W class D
amplifiers power the mid/bass drivers, for room-filling, controlled sound. The diligent amplifier development
has all been undertaken in-house by KEF, in order to completely control the quality of power on offer.
The end result of this tireless effort is sensationally dynamic sound, with the music’s subtle ebb and flow
delivered in all its glory

DESIGN
Attention to every detail

The LS50 Wireless II will also fit comfortably into your living space when it comes to style. The lowdiffraction, curved baffle is precision modelled around the Uni-Q driver array, while eye-catching heat sinks
and colour-matched ports are located on the well-equipped rear. LS50 Wireless II is available in three matt
finishes, Carbon Black, Titanium Grey, Mineral White as well as a Crimson Red Special Edition. All the colours
are mirrored on both the drive units and the rear-facing port means the LS50 Wireless II looks fantastic from
any angle.

On the LS50 Wireless II’s underside, each corner has a threaded inset allowing the speaker to lock onto the
top of the new KEF S2 Floor Stands, which also boast integrated cable management and a mass-loadable
column. The stands are all colour matched to your finish of choice.
For even more impact and bass extension, LS50 Wireless II features two subwoofer outputs, one on each
speaker. When paired with KEF’s KUBE range or KF92 subwoofers, music and film becomes even more
impactful.