KEF LS50 Wireless II

The KEF LS50 Wireless II is a compact active speaker system that delivers a complete hi-fi setup in a single pair of loudspeakers. Built around KEF's 12th Generation Uni-Q driver with Metamaterial Absorption Technology, and powered by 380W of dedicated amplification, it is a serious proposition for anyone who wants high-resolution audio without the complexity of a separates chain.

12th Generation Uni-Q with Metamaterial Absorption Technology (MAT™)

The LS50 Wireless II uses KEF's 12th Generation Uni-Q driver array, which places the tweeter at the acoustic centre of the midrange cone. This Single Apparent Source design means that treble and midrange appear to emanate from the same point, producing a wide, consistent sweet spot and stable stereo imaging across a broader listening area than a conventional two-driver arrangement.

Metamaterial Absorption Technology — MAT™ — sits behind the tweeter and works as an acoustic absorber for the rearward energy the tweeter produces. KEF describe it as a precisely engineered labyrinthine structure that absorbs 99% of the unwanted sound radiating from the rear of the tweeter, preventing it from reflecting back through the driver and introducing colouration into the treble. The practical result is a measurable reduction in distortion and a cleaner, more resolved high-frequency presentation.

Music Integrity Engine

The Music Integrity Engine is the DSP and amplification architecture that sits at the heart of the LS50 Wireless II. It coordinates the two dedicated amplifier channels — 280W Class D for the bass/midrange driver and 100W Class A/B for the tweeter — with KEF's signal processing algorithms to ensure that the amplification is optimised specifically for this driver and cabinet, rather than being a general-purpose design. The crossover and time-alignment are handled entirely in the digital domain before amplification, which allows a level of precision that passive crossover designs cannot match.

W2 Wireless Platform and Connectivity

The W2 wireless platform gives the LS50 Wireless II access to every major streaming service and protocol. Wi-Fi, Apple AirPlay 2, Google Chromecast and Bluetooth are all built in. The KEF Connect app provides access to Amazon Music, Qobuz and Deezer directly, while Spotify Connect and Tidal Connect are available through their respective applications. The LS50 Wireless II is also Roon Ready and supports Internet Radio.

For high-resolution audio, the system handles PCM files up to 24-bit/384kHz, MQA decoding and DSD256. Wired connectivity covers HDMI ARC for television use, optical, coaxial and RCA analogue inputs, making it straightforward to connect a turntable, CD player or games console alongside streaming sources.

The connection between the two speakers is wireless, removing the need for an interconnect cable across the room. The LS50 Wireless II is available in Carbon Black, Mineral White, Titanium Grey and Royal Blue.

Technical Specifications

Who Is It For?

The LS50 Wireless II is the natural choice for anyone who wants a genuinely high-performing active speaker system in a compact footprint. It suits a dedicated listening room as readily as a living room, and the breadth of connectivity means it will work with a TV, a turntable and a streaming service without compromise. Those who want to extend the bass further can add the KEF KC62 Subwoofer, which is optimised to work with the LS50 Wireless II and integrates via a dedicated output on each speaker. If your listening room is larger and demands more scale, the KEF Blade Meta represents the top of KEF's passive range, though it requires a separate amplifier and streaming source.

Buying from Martins Hi-Fi

Martins Hi-Fi has been in Norwich since 1968. Elizabeth Gould runs the business today, and we stock only brands we have heard properly and stand behind. The LS50 Wireless II is available to demonstrate at our Norwich showroom, where Dave and Chris can walk you through the setup, show you how the KEF Connect app works in practice, and help you decide whether the LS50 Wireless II or the KEF KC62 Subwoofer combination is right for your room.

Contact us at [email protected], call 01603 627010, or WhatsApp on 07554 687137. You can read more about how we work on our Why Martins Hi-Fi page. We are at 85–91 Ber Street, Norwich, NR1 3EY.