• Playback Freedom: The new wireless platform of the LS50 Wireless II ensures minimal fuss and fantastic sound quality no matter how you like to listen to your music. 
• User-Centred Design: Beyond a flawless performance, LS50 Wireless II speakers are easy to set up and use. Stream to multiple speakers using AirPlay 2 or Chromecast and enjoy music throughout your home. 
• High Performance Class: KEF’s bespoke Music Integrity Engine is a cutting-edge collection of bespoke DSP algorithms optimised for the new Uni-Q with MAT driver array to deliver perfectly timed performance with a tighter, unsmeared sound. 
• Striking Design: LS50 Wireless II fit comfortably into your living space, featuring a top-mounted control panel that is designed to be stylish and functional. And their Crimson Red colour is simply marvellous.

KEF LS50 Wireless II Speakers in Crimson red are more than a high-performance loudspeaker; they’re the perfect all-in-one speaker system, streaming from any source thanks to their wireless compatibility with AirPlay 2, Chromecast and more. They effortlessly provide great sound with no strings attached.

The award-winning LS50 Wireless II from KEF is a stunning multiuse speaker system with new, innovative technology providing superior sound so clear, it reveals every detail of your favourite music as though the artist is there with you in the room. Precision-designed for acoustic excellence, the LS50 Wireless II Speakers present an unmatched audio experience. Featuring compatibility with AirPlay 2, Google Chromecast and all major streaming applications, the speakers boast a simple multiroom system allowing you to broadcast sound around your home. With an immersive sound and plentiful power, the LS50 Wireless II is intelligently designed by KEF, providing an immersive sound quality for everyday use at home.

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

Model: LS50 Wireless II in Special Edition Crimson Red Product Number: SP4025KB

In the box: LS50 Wireless II, Remote Control, Interspeaker Cable, Power Cord, Quick Start Guide, Warranty

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 Power (Per speaker)

LF: 280W HF: 100W

Amplifier Class (per speaker)

LF: Class D
HF: Class AB

Max SPL Measured at 1m

108 dB

Wireless Streaming Features

AirPlay 2
Google Chromecast
ROON Ready (coming soon)
UPnP Compatible
Bluetooth 4.2

Streaming Services

Spotify via Spotify Connect
Tidal via Tidal Connect
Amazon Music
Qobuz
Deezer
QQ Music via QPlay (coming soon)
Internet Radio
Podcast

*Depends on services available in different countries

Source Resolution 

Network up to 384kHz/24bit Optical up to 96kHz/24bit
Coaxial up to 192kHz/24bit
HDMI up to 192kHz/24bit

*Depends on the source resolution

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
DSF: DSD64, DSD128, DSD256
DFF: DSD64

Dimensions (HWD per speaker)

30.5 x 20.0 x 31.1 cm  

Weight (per set)

20.1kg  

Power Input

100 – 240VAC 50/60Hz

Power Consumption 

200W (operating power)
<2.0W (standby power)

PRIMARY SPEAKER

INPUTS

HDMI eARC
TOSLINK Optical
Digital Coaxial
Analog 3.5mm Auxiliary
USB Type-A (service)
RJ45 Ethernet (network)
RJ45 Ethernet (interspeaker)

Secondary Speaker

INPUTS

USB Type-A (service)
RJ45 Ethernet (interspeaker)

Output

RCA Subwoofer output

Output

RCA Subwoofer output

Wi-Fi Network Standard

IEEE 802.11a/b/g/n/ac IPv4, IPv6

Wi-Fi Network Frequency Band

Dual-band 2.4 GHz / 5 GHz