KEF LS50W MKII Special Edition Wireless Speakers (Pair), Crimson Red
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Key Features
- What Hi-Fi? awarding-winning speakers
- 12th gen Uni-Q with MAT driver array delivers a three-dimensional sound
- Built-in Class A/B and Class D amplifiers power each driver independently
- Compatibility with AirPlay 2, Chromecast, Roon, and KEF Connect app
- Bluetooth allows for wireless hi-res streaming of up to 24bit/96kHz audio
KEF LS50W MKII Special Edition Wireless Speakers (Pair), Crimson Red Overview
The KEF LS50W MKII are What Hi-Fi? award-winning wireless speakers, with their 12th-generation Uni-Q driver array enabling a room-filling, three-dimensional sound image and wide 'sweet spot'. This setup is enhanced by Metamaterial Absorption Technology (MAT) which effortlessly reduces any distortion, creating a live concert-like atmosphere in your own living space. KEF's bespoke Music Integrity Engine, a collection of custom Digital Signal Processing algorithms, eliminates timing errors to offer excellent imaging and crossover. Additionally, you can expect incredible audio thanks to the two built-in amplifiers powering each driver individually, capable of delivering a total power output of 380W.
The KEF Connect app adds a layer of convenience, granting full speaker control and support for major streaming platforms such as Spotify, TIDAL, and Apple Music. Using Bluetooth, these speakers can wirelessly connect to your smart devices and stream music up to 24bit/96kHz audio. Taking things one step further, MQA and DSD help produce accurate sound reproduction that's as close to the original recording as possible. The LS50W MKII is even Roon Ready, so you can play your favourite playlists and albums throughout multiple rooms in your home, contributing to an audiophile listening experience that follows you wherever you're listening.
Product Ref: 209372
Full Description
2025 Best speaker system over £1500
2023-2024 Best speaker system £1500-£3000
2022 Best all-in-one system over £1500
2020-2021 Best all-in-one system over £1000
"As a new product following in the footsteps of such a huge success, the KEF LS50 Wireless IIs arrive with a world of expectation on their shoulders – but they well and truly meet those expectations. Make no mistake, this is a sequel of rare quality."
AV Forums - Highly Recommended
"All the engineering cleverness has been corralled into something fundamentally usable day to day and that obviates some of the demands that the passive version makes on commensurately priced equipment."
Exceptional Sounds
At the heart of the LS50W MKII speakers is their 12th-generation Uni-Q driver array. This KEF-exclusive setup places the 25mm tweeter in the acoustic centre of the midrange cone, creating an immersive, three-dimensional sound that is elevated further by the powerful 5.25-inch driver. To ensure optimal sound clarity, Metamaterial Absorption Technology (MAT) absorbs the rear wave of the tweeter. This extinguishes 99 of any unwanted sound reflections, resulting in a world-class high-frequency response.
Robust Audio
The LS50W MKIIs are fitted with a Music Integrity Engine, which uses Digital Signal Processing (DSP) to optimise the audio in real-time. The result is a balanced, well-timed sound with excellent dispersion so you can hear every lyric in pristine quality. These active speakers also feature a combination of a 100W class A/B and a 280W class D amplifier to boost the tweeter and mid/bass driver, respectively. This bi-amplification technique allows for a more dynamic sound output across all music genres.
Smooth Wireless Listening
These adaptable speakers are also designed to cater to the modern listening habits of audiophiles. With built-in Bluetooth, you can effortlessly stream your playlists, albums and podcasts in commanding 24bit/96kHz resolution. There is even full support for Master Quality Authenticated (MQA) and Direct Stream Digital (DSD), so you can relish studio-quality audio. But it doesn't stop there! When using AirPlay 2, Chromecast or Roon you can stream to multiple speakers, enabling you to play music all over your house.
Effortless Connectivity and Control
As well as its wireless capabilities, the two LS50W MKII speakers can be connected using the supplied cable for 24bit/192kHz audio. The optical, coaxial, and HDMI eARC inputs will ensure smooth connectivity to all your hi-fi separates, with the subwoofer output allowing you to expand your speaker system to a 2.1 setup. Moreover, the dedicated KEF Connect app gives you complete control over your musical experience. You can easily play/pause songs, alter audio settings, and access streaming platforms such as Spotify, TIDAL, Apple Music, and Qobuz.
Key Features
- 12th generation Uni-Q driver array delivers a room-wide 'sweet spot' with holographic soundstage
- Metamaterial Absorption Technology (MAT) reduces unwanted distortion for a clear sound
- Music Integrity Engine uses DSP algorithms to correct timing errors to ensure improved imaging
- 100W Class A/B and 280W Class D amplifiers offer powerful audio to enhance the music
- Bluetooth supports wireless streaming up to 24bit/96kHz resolution
- MQA and DSD support guarantees exceptional sound quality whilst streaming
- AirPlay 2, Chromecast and Roon Ready compatibility allow for a multiroom listening experience
- Optical, coaxial, and HDMI eARC inputs offer versatile connectivity
- The KEF Connect app gives you total control over the sound
What's in the Box?
- KEF LS50W MKII Wireless Speakers
- 1 x Remote control
- 1 x Interspeaker cable
- 1 x Power cord
- Documentation
Specifications
Dimensions
| Dimensions per speaker (H x W x D ) | 305 x 200 x 311 mm |
|---|---|
| Weight (per set) | 20.1 kg |
General
| Model | LS50 Wireless II |
|---|---|
| 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 | 40Hz – 47kHz *Depends on EQ settings |
| Frequency response (±3dB)measured at 85dB/1m | 45Hz – 28kHz *Depends on EQ settings |
| Amplifier output 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 UPnP Compatible Bluetooth 4.2 |
| Streaming services | Spotify via Spotify Connect Tidal Amazon Music Qobuz Deezer QQ Music via QPlay, Internet Radio Podcast *Depends on services availability 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 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 Ogg Vorbis |
| Supported format (network) | MQA: MQA Core Decoder DSF: DSD64, DSD128, DSD256 DFF: DSD64 |
| Power input | 100 – 240VAC 50/60Hz |
| Power consumption | 200W (operating power) <2.0W (standby power) |
| Inputs Primary Speaker | HDMI eARC TOSLINK Optical Digital Coaxial Analog 3.5mm Auxiliary USB Type A (service) RJ45 Ethernet (network) RJ45 Ethernet (interspeaker) |
| Inputs Secondary Speaker | USB Type A (service) RJ45 Ethernet (interspeaker) |
| Output Primary Speaker | RCA Subwoofer output |
| Output Secondary Speaker | 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 |
| Product code | SP4025KB |
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