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KEF LS50 Mini Monitor Loudspeaker

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"The LS50 resolves beautifully and matches this with tonal accuracy and cohesion that is truly outstanding but just as importantly, it does all this with a sense of energy life and sheer entertainment that is quite its own." - AVF

Quick Overview

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

​Rarely the case in such a compact design, the 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, 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.


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.
  • Design: Two-way bass reflex
  • Uni-Q driver array - HF: 25mm (1in.) vented, aluminium dome, LF/MF: 130mm (5.25in.), magnesium/aluminium alloy
  • Frequency range (-6dB): 47Hz - 45kHz
  • Frequency response (±3dB): 79Hz - 28kHz
  • Crossover frequency: 2.2kHz
  • Amplifier requirements: 25 - 100 W
  • Sensitivity (2.83V/1m): 85dB
  • Harmonic distortion 2nd & 3rd harmonics (90dB, 1m): <0.4% 175Hz-20kHz
  • Maximum output: 106dB
  • Nominal impedance: 8Ω (min. 3.2Ω)
  • Weight: 7.2kg (15.8lbs.)
  • Dimension (H x W x D) (with terminal): 302 x 200 x 278 mm, (11.9 x 7.9 x 10.9 in.)
  • Available finishes: Gloss Black, Gloss White, Matte Black
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