KEF LS50 Loudspeaker

‘The KEF LS50 delivers the kind of performance that deserves to be on a Wheaties box’ – The Absolute Sound


“The KEF LS50 is one of the most all-around-satisfying little speakers I’ve reviewed in some time. Construction and execution are exemplary. It delivers the kind of performance that deserves to be on a Wheaties box. And there’s an incalculable coolness factor that makes it a breath of fresh air. The LS50 also answers the classic question, “Who says you can’t teach an old box new tricks?”
– Neil Gader, The Absolute Sound (read the review)


“So what really grabbed me most at the show? Well, the biggest shocker was the KEF room, where the $1500 LS50 was delivering a real wallop from its 5.25 driver. What it did for the money was hands down the most shocking experience of the show. Perfect for small room and guaranteed to leave anyone who hears them slackjawed. Rule Britannia!”
– Jacob Heilbrunn, Absolute Sound.

Stereophile Product of the Year Award 2013

“It is rare to find a loudspeaker that offers this combination of clarity and neutrality.”
– John Atkinson, Stereophile (read the review)

KEF LS50 1

“The KEF LS50 is a snappy thing to listen to. Music bounces along with heady abandon, and so do you!”
– Hi-Fi Choice

“The terrific KEF LS50 standmounters show no sign of losing their sparkle after dazzling our readers for a second successive year.”
–  What Hi-Fi? Sound & Vision

 What Hi-Fi? Sound & Vision – Readers’ Award

“Our readers love the LS50s, and so do we. It’s a cracking speaker”
– What Hi-Fi? Sound & Vision

KEF LS50 2


An innovative concept inspired by the legendary LS3/5a, the KEF LS50 mini monitor speaker is designed to bring professional studio monitor concept into the home.

Rarely the case in such a compact design, the The KEF LS50 monitor delivers a rich, multi-dimensional ‘soundstage experience’ that is out of all proportion to its size. Patent-pending acoustic designs, together with state-of-the-art technologies from KEF’s latest flagship Blade loudspeaker, provide the ultimate studio experience – even in the smallest of spaces.

Creating a small housing capable of delivering such a spacious sound is the result of considerable research and development. In cabinet construction, baffle shaping and port design, the KEF LS50 breaks new ground with patent-pending technology. All this is made possible by KEF’s leadership in modern research (including techniques such as Finite Element Analysis and Computational Fluid Dynamics*). LS50’s unique technology offers by far the cleanest, most accurate studio-grade performance of any mini-monitor.

KEF LS50 3

The KEF LS50 employs revolutionary technology developed for Blade, KEF’s latest flagship loudspeaker. Using the very latest Uni-Q driver, specifically designed for this model, LS50 radiates an extremely large listening sweet spot and delivers a remarkably fast, clean sound. And, because LS50 neither adds nor subtracts a single sound, it’s effortlessly natural and accurate too.

KEF LS50 4


• Design: Two-way bass reflex
• Drive units:
• HF: 25mm (1in.) vented aluminium dome
• MF: 130mm (5.25in.) magnesium/ aluminium alloy
• Crossover frequencies: 2.2kHz
• Frequency response (±3dB): 79Hz – 28 kHz
• Frequency range (-6dB): 47Hz – 45kHz
• Maximum output (SPL): 106dB
• Sensitivity (2.83V/1m): 85dB
• Amp Requirements: 25-100w
• Nominal impedance: 8Ω (min. 3.2Ω)
• Dimensions (H x W x D): 11.9 x 7.9 x 10.9 in.
• Weight: 7.2kg (15.8lbs)