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KEF LS50 Wireless II Powered Bookshelf Speaker System

$3,499.00
$2,799.00
/pair
Sale ends Thu May 08, 2025
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Description

LS50 Wireless II

The Ultimate Streaming HiFi Speakers.

 

 

LS50 Wireless II is more than a high-performance loudspeaker; it’s the perfect all-in-one speaker system, streaming from any source thanks to wireless compatibility with AirPlay 2, Chromecast and more — plus wired connections for your TV, games console and turntable.
 
Great sound, no strings attached. KEF's 12 generation Uni-Q with Metamaterial Absorption Technology reveals every detail of your favourite music with reduced colouration, less distortion, and a sound that is more transparent and life-like than previously possible. 

  • Play major music services and supports all major audio formats
  • Wireless both from source and between the speakers
  • Comprehensive applications and connectivity with personalised listening experience via KEF Connect App
  • Metamaterial Absorption Technology for pure, natural sound
  • 12th generation Uni-Q with MAT for exceptional acoustic accuracy
  • Music Integrity Engine for rich, full-bodied sound
  • System power: LF 280W class D, HF 100W class A/B, Max. SPL: 108dB
  • Optimised cabinet design for best acoustic performance
  • Available in 4 finishes
  • Mounting inserts to secure on KEF S2 Floor Stands (sold separately)

 

Wireless evolved
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.
 
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'll 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. 
 
All your devices
Apple 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.
 
Hi-Fi enthusiast
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.
 
Personalised listening experience
Even beyond the brilliant musical performance, the LS50 Wireless II speaker system is simple to set up, easy to use, and offers over-the-air firmware updates for bringing you new and improved features over time. The brand-new dedicated KEF Connect app walks you through the setup 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. 
 
Wired or wireless connectivity
You can choose to operate LS50 Wireless II completely wirelessly at 24bit/96kHz resolution for a clutter-free set up, or you can connect the two speakers with the supplied cable for 24bit/192kHz resolution sound.
 
Simple multiroom system
When using LS50 Wireless II with Airplay 2, Chromecast or Roon you can stream to multiple speakers around your home at the same time. By using multiple LS50 Wireless II speakers, you can have a simple, high-performance multiroom system.
 
 
Revolutionary sound absorption with Metamaterial Absorption Technology
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.
 
 
12th Generation Uni-Q with MAT
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 not just right in the middle. 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 articulate bass.
 
Music Integrity Engine
All aspects of the LS50 Wireless II’s performance is aided by KEF’s bespoke Music Integrity Engine. This collection of bespoke Digital Signal Processing algorithms is optimised for the Uni-Q driver, enabling it to deliver a perfectly timed performance, for better imaging and a tighter sound.
 
Plentiful power
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.
 
For even more impact and bass extension, LS50 Wireless II features two subwoofer outputs, one on each speaker. When paired with KEF’s KC62 subwoofer, music and film becomes even more impactful.
 
 
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
 
Attention to every detail
Every aspect of LS50 Wireless II has been considered for acoustic benefits and from a design perspective. The low-diffraction, curved baffle is precision modelled around the Uni-Q driver, while eye-catching heat sinks and colour-matched ports are located on the well-equipped rear. The top-mounted control panel is designed to be stylish and functional.
The perfect colour for you
LS50 Wireless II is available in three matte finishes, carbon black, titanium grey, and mineral white, as well as a Crimson Red Special Edition. All the colour options are mirrored on both the drive units and the rear-facing port. 
 
Finished to perfection
LS50 Wireless II is much more than just a utilitarian speaker system; it is a piece of sculpture that livens up your life. This is why we offer a choice of is available in three matte finishes, carbon black, titanium grey, and mineral white — as well as a Crimson Red Special Edition with gloss sides, exclusive to LS50 Wireless II. All the colour options are mirrored on both the drive units and the rear-facing port.
 
 
 
 
Spec
 
Drive units    
Uni-Q Driver Array:
LF: 130 mm (5.25 in.) aluminium cone
HF: 25 mm (1 in.) vented aluminium dome with Metamaterial Absorption Technology
 
Frequency range (-6dB) measured at 85dB/1m
40 Hz – 47 kHz (Depends on EQ settings)
 
Frequency response (±3dB) measured at 85dB/1m
45 Hz – 28 kHz (Depends on EQ settings)
 
Amplifier output power (per speaker)
LF: 280W [class D]
HF: 100W [class A/B]
 
Wireless streaming features
AirPlay 2
Google Chromecast
ROON Ready
UPnP Compatible
Bluetooth 4.2
 
Streaming services (availability varies by country)    
Spotify via Spotify Connect
Tidal
Amazon Music
Qobuz
Deezer
QQ Music via QPlay
Internet Radio
Podcast
 
Input resolution (depends on source resolution)
Network up to 384kHz/24bit
Optical up to 96kHz/24bit
Coaxial up to 192kHz/24bit
HDMI up to 192kHz/24bit
 
Interspeaker connection
Wireless: all sources resampled to 96kHz/24bit PCM
Wired: all sources resampled to 192kHz/24bit PCM
 
Supported format (all inputs)
MP3, M4A, AAC, FLAC, WAV, AIFF, ALAC, WMA, LPCM and Ogg Vorbis
 
Supported format (network)
MQA [core decoder]
DSF: DSD64, DSD128, DSD256
DFF: DSD64
 
Primary speaker Inputs
HDMI eARC
TOSLINK Optical
Digital Coaxial
Analog 3.5mm Auxiliary
RJ45 Ethernet (network)
RJ45 Ethernet (interspeaker)
USB Type A (service only, USB audio not supported)
 
Secondary speaker Inputs
RJ45 Ethernet (interspeaker)
USB Type A (service only, USB audio not supported)
 
Outputs
RCA Subwoofer output (both primary speaker and secondary speaker)
 
Wi-Fi network frequency band / standard
Dual-band 2.4 GHz / 5 GHz
IEEE 802.11a/b/g/n/ac
IPv4, IPv6
 
Power input
100 – 240VAC 50/60Hz
 
Power consumption
200W (operating power)
<2.0W (standby power)
 
Weight (per set)   
20.1kg (44.3 lbs)
 
Dimensions (HWD per speaker)    
305 x 200 x 311 mm (12 x 7.9 x 12.2 in.)
 

Specs

Dimensions

About KEF

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