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KEF LS50 Wireless II Bookshelf Speakers

The Ultimate Wireless 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, Google Cast and more, plus wired connections for your TV, games console and turntable. Great sound, no strings attached.

$4,000.00
Brand

Warranty Period : 2 years

Sold as : 1 Pair

The Ultimate Wireless HiFi

LS50 Wireless II is more than a high-performance loudspeaker; it’s the perfect all-in-one speaker system. It reveals every detail of your favourite music, which you stream from any source thanks to wireless compatibility with AirPlay 2, Google Cast and more.

Freedom

All the music, all the time

No matter how you stream your music, LS50 Wireless II has you covered. You can stream directly from the Spotify native app with Spotify Connect. With the KEF Connect app you can also stream Tidal, Amazon Music, Qobuz, and Deezer or tune in to internet radio and podcasts.

All your devices

Out-of-the-box wireless compatibility with AirPlay 2, Google Cast and more, backed up with wired connections such as HDMI for your TV, turntable, CD player and games console. Whatever source you’ve got, LS50 Wireless II is ready for it.

HiFi enthusiast

LS50 Wireless II has audiophiles covered with support for streaming music files up to 24bit/384kHz, as well as MQA, DSD, and Roon Ready. These features mean that even the experienced hifi enthusiast will marvel at this exceptional loudspeaker’s ability.

Seamless home integration

LS50 Wireless II is more than a high-fidelity speaker system - it is designed to enhance your everyday life. Seamlessly integrate LS50 Wireless II into your smart home to browse and play music, select sources, or use controls such as play, pause, and adjust the volume via your smart home app or control interface.

User-Centred

Let you be you 

Even beyond the flawless musical performance, LS50 Wireless II is a breeze to set up thanks to the KEF Connect app. It is intuitive to use with any source in your home, and it allows simple over-the-air firmware updates that bring you new and improved features with the minimum of fuss.

Wired or wireless connectivity

You can choose to operate LS50 Wireless II completely wirelessly at 24bit/96kHz resolution for a completely clutter-free set up, or you can connect the two speakers with the supplied cable for 24bit/192kHz resolution sound.

Personalised listening experience

The brand-new dedicated KEF Connect app controls LS50 Wireless II on a day-to-day basis, including intuitive sound settings so you can tune the sound to your own personal tastes. You can even select your favourite source to wake up LS50 Wireless II whenever it comes on, allowing you immediate access to the best sound.

Simple multiroom system

When using LS50 Wireless II with AirPlay 2, Google Cast 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.

Performance

Most accurate, immersive sound

Metamaterial Absorption Technology

A truly revolutionary tool in the KEF acoustic armoury, Metamaterial Absorption Technology ( MAT™) is a highly complex maze-like structure that absorbs 99% of the unwanted sound from the rear of the driver, eliminating the resulting distortion and providing purer, more natural sound.

EXPLORE MORE

Every spot is the sweet spot

12th generation Uni-Q with MAT™

LS50 Wireless II melts away, leaving you to enjoy the music. Revolutionary Metamaterial Absorption Technology eliminates distortion for a purer, more natural sound, while our 12th generation Uni-Q with MAT driver array delivers three-dimensional, wonderfully revealing sound anywhere in the room.

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

The built-in amplifiers have been developed in-house by KEF. Each tweeter is driven by a 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 up to 108db.

Design

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 four matte finishes, Carbon Black, Mineral White, Sand Shell and Moss Green. All the colour options are mirrored on both the drive units and the rear-facing port. The top-mounted control panel is designed to be stylish and functional.

Design by Simon Davies and KEF Industrial Design Team

Simon Davies led the KEF Industrial Design Team from 2000 through to 2018. He was responsible for key product designs including LS50 and LS50 Wireless, The Reference and R Series. Since 2018, Simon has acted as a design consultant for KEF, and continues to work very closely with the KEF Industrial Design Team.

Specification
PERFORMANCE
Frequency Response
  • 45Hz - 28kHz (±3dB, measured at 85dB/1m; depends on EQ settings)
Frequency Range
  • 40Hz - 47kHz (-6dB, measured at 85dB/1m; depends on EQ settings)
Maximum SPL
  • 108dB (1m)
DRIVERS
Driver Array
  • 12th Generation Uni-Q
Tweeter
  • 1 x 25mm Vented Aluminium Dome per Speaker
    • Metamaterial Absorption Technology (MAT)
Mid/Bass Driver
  • 1 x 130mm Aluminium Cone per Speaker
ANALOGUE INPUTS
Auxiliary Input
  • 1 x 3.5mm Stereo (Primary Speaker)
DIGITAL INPUTS
HDMI Input
  • 1 x HDMI eARC (Primary Speaker)
    • PCM
    • Up to 24-bit / 192kHz (depends on source resolution)
Optical Input
  • 1 x TOSLINK Optical (Primary Speaker)
    • PCM
    • Up to 24-bit / 96kHz (depends on source resolution)
Coaxial Input
  • 1 x Digital Coaxial (Primary Speaker)
    • Up to 24-bit / 192kHz (depends on source resolution)
NETWORK AND STREAMING
Network Connections
  • 1 x RJ45 Ethernet (Primary Speaker)
  • Wi-Fi
    • IEEE 802.11a/b/g/n/ac
    • Dual-band 2.4GHz / 5GHz
  • IPv4
  • IPv6
Streaming Services
  • Spotify
  • TIDAL
  • Amazon Music
  • Qobuz
  • Deezer
  • Internet Radio
  • Podcasts
  • Availability varies by country
Streaming Protocols
  • AirPlay 2
  • Google Cast
  • Spotify Connect
  • TIDAL Connect
  • Roon Ready
  • UPnP
  • Bluetooth 5.0
Network Functions
  • Multi-Room Streaming via AirPlay 2, Google Cast or Roon
  • Plays with Audirvāna
AMPLIFIER SPECIFICATIONS
Power Output
  • 280W (Mid/Bass, per Speaker)
  • 100W (Tweeter, per Speaker)
Amplifier Class
  • Class D (Mid/Bass)
  • Class AB (Tweeter)
AUDIO PROCESSING
DSP
  • Music Integrity Engine
Equalisation
  • User-adjustable Sound Settings via KEF Connect
Supported Audio Formats
  • PCM
    • MP3
    • M4A
    • AAC
    • FLAC
    • WAV
    • AIFF
    • ALAC
    • WMA
    • LPCM
    • Ogg Vorbis
  • MQA (Network)
  • DSD (Network)
    • DSF
      • DSD64 (2.8MHz)
      • DSD128 (5.6MHz)
    • DFF
      • DSD64 (2.8MHz)
Network Audio Resolution
  • Up to 24-bit / 384kHz (depends on source resolution)
Interspeaker Resampling
  • Wireless
    • All Sources Resampled to 24-bit / 96kHz PCM
  • Wired
    • All Sources Resampled to 24-bit / 192kHz PCM
OUTPUTS
Subwoofer Outputs
  • 2 x Mono RCA
    • 1 per Speaker
CONNECTIVITY
Interspeaker Connection
  • Wireless
    • Up to 8m Separation (depends on network conditions)
  • Wired
    • RJ45 Ethernet Connection on Each Speaker
    • Cable Length up to 10m
    • Requires Cable Mode in KEF Connect
Control
  • KEF Connect App
  • Remote Control
  • Top-mounted Touch Control Panel
Home Automation Integration
  • Elan
  • RTi
  • Crestron Home
  • Savant
  • Control4
  • URC
Service Ports
  • 2 x USB-A (Service Only; 1 per Speaker)
GENERAL SPECIFICATIONS
What's Included
  • LS50 Wireless II Speaker Pair
  • Remote Control
  • Interspeaker Cable
  • Power Cord
  • Quick Start Guide
  • Warranty Documentation
  • Contents and Colour Vary by Region
Dimensions
  • 200mm Width (per Speaker)
  • 311mm Depth (per Speaker)
  • 305mm Height (per Speaker)
Weight
  • 20.1kg (per Set)
Power Requirements
  • 100V - 240V AC
  • 50/60Hz
Power Consumption
  • 200W Operating
  • <2.0W Standby

"KEF’s revisions have paid off: these sequels are among the most thrilling speaker systems we’ve heard."

- Read the What Hi-Fi review here.