Key Features

Fully Active Powered Speaker System
Each speaker includes built-in amplification for both the woofer and tweeter, eliminating the need for an external amplifier while delivering high-performance audio.
Uni-Q Driver Array
KEF’s signature concentric driver design places the tweeter in the centre of the midrange driver to create exceptionally uniform sound dispersion and precise imaging.
Advanced Digital Signal Processing
Built-in DSP optimises crossover performance and overall speaker behaviour for clear detail, coherence, and dynamic control.
High-Resolution Streaming and Network Audio
Supports high-resolution audio formats and network streaming, enabling detailed playback from music services and local network sources.
Flexible Connectivity Options
Includes Wi-Fi, Bluetooth, USB-B, optical, coaxial, and analog inputs for broad system compatibility with TVs, computers, streamers, and other sources.
Room Compensation Controls
Adjustable room tuning settings allow optimisation of bass and tonal balance based on speaker placement and room acoustics.
Multi-Room and App Integration
Network support and companion app control provide easy system setup, firmware updates, and multi-room playback capabilities.
Powerful Built-In Amplification
Dedicated amplifiers for each driver deliver clean, powerful output with low distortion and strong dynamic range.
Wide Frequency Response
Tuned for deep, accurate bass, detailed midrange, and extended high frequencies for engaging audio across music and movies.
Elegant Titanium Grey Finish
Modern finish that complements contemporary interiors and matches the aesthetic of premium audio setups.
Compact Bookshelf Form Factor
Designed to provide rich, immersive sound while fitting comfortably in smaller listening spaces or on stands and shelves.

Description

KEF LS50 Wireless 2 – Powered/Active Bookshelf Speaker

Wireless HiFi Speakers

LS50 Wireless II

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, Chromecast and more, plus wired connections for your TV, games console and turntable. Great sound, no strings attached.

Freedom

All the music, all the time

Play all major music services and support all major audio formats

Wireless both from the source and between the speakers

Comprehensive applications and connectivity

User-Centred

Let you be you

Intuitive onboarding with user-centred features

Personalised listening experience via KEF Connect App

Performance

Most accurate, immersive sound.

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

Design

Attention to every detail

Optimised cabinet design for best acoustic performance

Available in 4 finishes

With mounting inserts to secure on the KEF S2 Floor Stand (available as a separate item)

What’s in the box

LS50 Wireless II
Remote control
Interspeaker Cable
Power cord
Quick Start Guide, Warranty
*Contents and colour vary by region

Listen and believe

Really great loudspeakers simply melt away, leaving you with just the music. A pristine voice, perfectly rendered layers of instruments you can lose yourself in, sound so clear it’s as though the artist is there with you. This is what great loudspeakers with the best technology deliver.

Specifications

Model	LS50 Wireless II
Source Resolution	Network up to 384kHz/24bit Optical up to 96kHz/24bit Coaxial up to 192kHz/24bit HDMI up to 192kHz/24bit *Depends on source resolution
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 the availability in different countries
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
Interspeaker Connection	Wireless: all sources resampled to 96kHz/24bit PCM Wired: all sources resampled to 192kHz/24bit PCM
Frequency Range (-6dB) Measured at 85dB/1m	40 Hz – 47 kHz *Depends on EQ settings
Primary Speaker Inputs	HDMI eARC TOSLINK Optical Digital Coaxial Analogue 3.5mm Auxiliary USB Type A (service) RJ45 Ethernet (network) RJ45 Ethernet (interspeaker)
Frequency Response (±3dB) Measured at 85dB/1m	45 Hz – 28 kHz *Depends on EQ settings
Home Automation System	Elan, RTi, Crestron Home, Savant, Control4, URC
Amplifier Output Power (Per Speaker)	LF: 280W HF: 100W
Supported Format (All Inputs)	MP3, M4A, AAC, FLAC, WAV, AIFF, ALAC, WMA, LPCM and Ogg Vorbis
Output	RCA Subwoofer output
Amplifier Class	LF: Class D HF: Class AB
Supported Format (Network)	MQA DSF: DSD64, DSD128 DFF: DSD64
Wi-Fi Network Frequency Band	Dual-band 2.4 GHz / 5 GHz
Max SPL Measured at 1m	108 dB
Dimensions (HWD per Speaker)	305 x 200 x 311 mm (12 x 7.9 x 12.2 in.)
Secondary Speaker Inputs	USB Type A (service) RJ45 Ethernet (interspeaker)
Wireless Streaming Features	AirPlay 2 Google Chromecast ROON Ready UPnP Compatible Bluetooth 5.0
Power Input	100 – 240VAC 50/60Hz
Output	RCA Subwoofer output
Power Consumption	200W (operating power) <2.0W (standby power)