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KEF LS50 Red Edition

Make sure and match with a good amp and source..... "2019 Stereophile Class A Rated" RETAIL: $1,499



We are proud to unveil the LS50 - our special 50th Anniversary commemorative monitor loudspeaker pair. The LS50 mini monitor speaker is a reinterpretation of the research, design and engineering approach from the legendary LS3/5a using the latest technologies developed at KEF.

An innovative concept derived from 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
• 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)