Owner's Manual

The multi-award winning LS50 Wireless speaker system set 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 MQA Decoding, DSD256, and Roon Ready. These features mean that even the experienced hi-fi
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 speaker system 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 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 Technology
(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.
LS50 Wireless II
Wireless Speaker System
1
Metamaterial Absorption Technology is a joint development with Acoustic Metamaterials Group.
Summary of features
FREEDOM – all the music, all the time
• Play all major music services and supports all
major audio formats
• Wireless both from source and between
the speakers
• Comprehensive applications and connectivity
USER-CENTRED – let you be you
• Intuitive on-boarding with user-centred features
• Personalised listening experience via
KEF Connect App
PERFORMANCE – most accurate, immersive sound
• Metamaterial Absorption Technology for pure,
natural sound
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acoustic accuracy
• Music Integrity Engine for rich, full-bodied sound
• System power: LF 280W class D, HF 100W class
A/B, Max. SPL: 108dB
DESIGN – attention to every detail
• Optimised cabinet design for best acoustic
performance
• Available in 4 finishes
• With mounting inserts to secure on KEF S2
Floor Stand (available as separate item)