The Future of Hi-Fi is Here: KEF LS50 Wireless II Review

In the world of high-fidelity audio, few products achieve legendary status. The original KEF LS50 was one of them—a passive bookshelf speaker that redefined what was possible at its size and price point. Its successor, the KEF LS50 Wireless II, isn’t just an update; it’s a complete reimagining of the modern stereo system. It takes an iconic acoustic design and injects it with a powerful digital brain, promising to be the only audio system you’ll ever need. But in a market flooded with smart speakers and soundbars, does it deliver on that audacious promise?
Sonic Purity Meets Digital Precision
Let’s get straight to the point: the sound is breathtaking. The LS50 Wireless II features KEF’s 12th generation Uni-Q driver, a point-source design that projects sound from a single point in space, creating a holographic and immersive soundstage. Vocals hang in the air with startling realism, and instruments are placed with pinpoint accuracy. The real star of the show, however, is the new Metamaterial Absorption Technology (MAT). KEF describes it as an “acoustic black hole” that sits behind the driver, absorbing 99% of unwanted rearward sound. The result is a level of clarity and purity that is simply astonishing. High frequencies are crisp and airy without a hint of harshness, while the midrange is rich and articulate.

The internal amplification, delivering a custom-bi-amped 380 watts to each speaker, provides effortless control. The bass is tight, fast, and surprisingly deep for a speaker of this size. It’s musically satisfying for everything from jazz trios to electronic tracks. That said, those seeking room-shaking, cinematic sub-bass for movies will want to take advantage of the subwoofer outputs and pair these with a good sub, like one of KEF’s own KC62s. For music, however, most will find them more than capable on their own.

Design and Build: A Modern Classic
Aesthetically, the LS50 Wireless II is a triumph of industrial design. The iconic curved front baffle isn’t just for looks; it minimizes sound diffraction, contributing to the clean audio output. The build quality is exceptional, with a dense, inert cabinet that feels every bit as premium as its price tag suggests. Available in several sophisticated matte finishes—Carbon Black, Titanium Grey, Mineral White, and a stunning Royal Blue Special Edition—they are designed to be a visual centerpiece, not something to be hidden away. They are a perfect blend of classic acoustic engineering and contemporary minimalist style that will complement almost any modern living space.
The Brains of the Operation: Connectivity and Control

This is where the “Wireless II” truly shines. KEF has built a platform that is robust, versatile, and user-friendly. Setup is managed through the KEF Connect app, which guides you through connecting to your Wi-Fi network and offers powerful DSP (Digital Signal Processing) controls to tune the speakers to your room’s specific acoustics.
The connectivity options are exhaustive. You get AirPlay 2, Google Chromecast, Roon Ready certification, native support for Spotify Connect and TIDAL Connect, and high-quality aptX Bluetooth. For physical sources, there’s HDMI eARC for seamless TV integration, plus optical, coaxial, and a 3.5mm analog input. This speaker can handle literally any source you throw at it, from a turntable to a 4K Blu-ray player. A key upgrade from the first generation is the option for a completely wireless connection between the two speakers (at 24-bit/96kHz resolution), though a supplied Ethernet cable enables the highest possible 24-bit/192kHz playback for purists.
Is It Worth the Investment?
With a premium price tag, the LS50 Wireless II is undeniably an investment. However, its value proposition is immense when you consider what it replaces. To achieve this level of performance with a traditional setup, you would need to purchase passive speakers, a high-quality integrated amplifier, a separate network streamer, and a DAC, not to mention all the interconnecting cables. The LS50 Wireless II bundles all of that into two elegant boxes, with components perfectly matched and tuned to work in harmony. It’s a complete, high-end Hi-Fi system that removes the complexity without sacrificing performance.
The Verdict
The KEF LS50 Wireless II is a masterful fusion of acoustic science and digital convenience. It delivers a truly audiophile-grade listening experience that is detailed, expansive, and deeply engaging, all from a system that is incredibly easy to live with. While the price is steep and bass-heads might want to budget for a subwoofer, the sheer quality and versatility on offer are undeniable.
This product is for the discerning listener who craves exceptional sound but eschews the clutter and complexity of traditional component Hi-Fi. It’s for the tech-savvy music lover who wants a system that sounds as good with a vinyl record as it does with a TIDAL Master stream, and that can pull double duty as a phenomenal TV audio solution. It’s not just a smart speaker; it’s a brilliant one, and it represents the future of high-fidelity audio.
Where to Buy:
KEF LS50 Wireless II Quick Summary
Key Scores:
- Value: 92%
- Design: 92%
- Performance: 91%
- Quality: 91%
- Popularity: 90%
Top Pros
- ✅ Sound quality is exceptionally clear, detailed, and immersive.
- ✅ Comprehensive streaming and physical connectivity options are superb.
- ✅ Elegant, minimalist design complements modern living spaces.
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Key Cons
- ❌ The premium price point is a significant investment.
- ❌ The companion app can have a slight learning curve.
- ❌ Deepest sub-bass frequencies require adding a subwoofer.