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Key Features
The Arcam Radia A15 & KEF LS50 Meta Hi-Fi System is designed for audiophiles seeking a unique level of sound fidelity. This system features the award-winning Arcam A15 Integrated Amplifier, featuring high-resolution audio support, 80W power output per channel, and an MM Phono stage for seamless vinyl integration. This has been paired with the KEF LS50 Meta Speakers, available in Black, White, Grey or Special Edition Blue.
These speakers use the world-renowned Uni-Q Driver Array and Meta material technology for extraordinary sound clarity and detailed audio reproduction. Complete your purchase with a cable pack of your choice and know you've saved time and money when you shop with AV.com. Find out more about these great products below:
Product Ref: 287301
"For yet another year the KEF LS50 Meta speakers remain the class leader at this level"
"...KEF is on to something with the Metamaterial technology and can’t wait to see how it develops. As things stand, that tech and all the other work KEF’s engineers have put into the Uni-Q array has propelled the LS50 Metas to the head of the class at this level. Buy them with confidence."
"The KEF is able to perform feats of soundstaging, time alignment and sheer impact that are an absolute delight."
"A well built amp, packed with useful features that delivers amazing sound"
"Arcam’s A15 is well-built, packed with useful features and most importantly, sounds great"
In 2011, KEF introduced the iconic LS50, a loudspeaker born from a commitment to innovation and a relentless pursuit of audio excellence. Drawing inspiration from the classic LS3/5A, the LS50 quickly became a modern icon in their own right. Then, in 2020, KEF proudly presented the LS50 Meta, the natural evolution of its predecessor. Meticulously crafted with the latest technologies and design philosophies, the LS50 Meta stands as a testament to KEF's dedication to pushing the boundaries of audio reproduction.
A groundbreaking feature of the LS50 Meta is the implementation of Metamaterial Absorption Technology (MAT). Developed in collaboration with the Acoustic Metamaterials Group, MAT transforms the landscape of loudspeaker design. This complex maze-like structure efficiently absorbs specific frequencies, acting as an acoustic black hole and eliminating unwanted sound distortion. The result is a purer, more natural acoustic performance, showcasing the abilities of this cutting-edge technology.
At the heart of the LS50 Meta is the 12th generation Uni-Q with MAT driver array. This point source configuration delivers a detailed, accurate, and integrated 3D sound image, dispersed evenly throughout the room. Through meticulous simulation, analysis, and decades of expertise, KEF engineers have refined the driver array, reducing distortion and enhancing transparency. The LS50 Meta's bass performance surpasses expectations, delivering room-filling sound with deep, articulate bass.
The LS50 Meta's patented offset flexible port, designed with Computational Fluid Dynamics (CFD), plays a crucial role in achieving exceptional clarity. Calculated to delay turbulence onset, the port's flexible walls prevent midrange colouration, resulting in improved depth and detail. The speaker's extremely rigid cabinet, engineered from advanced materials, further minimises colouration, making the LS50 Meta a standout performer in its class.
Inheriting the distinctive aesthetics of the original LS50, the LS50 Meta boasts a low-diffraction, curved baffle precisely shaped around the Uni-Q driver array. The cabinet's smooth curved surfaces, injection-moulded Dough Moulding Compound (DMC) baffle, and meticulous internal bracing contribute to the lowest colouration in its class. Available in four modern matte finishes, the LS50 Meta exudes elegance, while the matching S2 Floor Stands enhance visual appeal and functionality. Browse the S2 Floor Stands here.
The LS50 Meta has garnered accolades from What Hi-Fi?, earning titles such as 'Best standmount speaker' in its price category as well as a glowing five-star review. This premium speaker, with its remarkable functionality and unparalleled sound quality, stands as a testament to KEF's enduring commitment to delivering an immersive and believable audio experience. As the successor to a long-celebrated lineage, the LS50 Meta continues KEF's tradition of pushing the boundaries of audio innovation and setting new standards in the world of high-fidelity sound.
The Arcam Radia A15 Integrated Amplifier is the heavy hitter of the series' Class AB amps, as well as the mid-point of the three models to be introduced in the range. As a result of 45 years of high-fidelity British home audio manufacturing, Radia amps have been developed to deliver superior musicality and performance. Capable of achieving 120W into four ohms and 80W into eight, the A15 is perfectly suited to satisfying power-hungry loudspeakers as well as filling larger rooms with sound.
This integrated amplifier is a nerve centre for audio sources. Featuring hi-res digital inputs, as well as a built-in ESS ES9018 DAC, you'll enjoy rich and reliably jitter-free music, ensuring compatibility with a range of digital equipment. The A15 also comes equipped with Bluetooth 5.2 featuring Qualcomm aptX Adaptive technology, allowing you to enjoy 24-bit HD audio from your phone or tablet. Additionally, this amp can connect to Bluetooth headphones, allowing you to enjoy your private listening experience wirelessly or wired.
Along with digital audio, the A15 also feature three analogue RCA inputs, as well as a dedicated Phono MM connection, giving turntable enthusiasts a direct link to their record collection. Designed for longevity, the A15 boasts solid aluminium dials as well as panels on the front, top, sides, and rear. It also comes with a compact remote control for convenient operation. If you're looking for a powerhouse amplifier that delivers outstanding performance and versatility, the Arcam A15 is the perfect choice.
Model | LS50 Meta |
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Design | Two-way bass reflex |
Drive units | Uni-Q Driver Array HF: 25 mm (1 in.) vented aluminium dome with Metamaterial Absorption Technology MF/LF: 130 mm (5.25 in.) aluminium cone |
Crossover frequency | 2.1 kHz |
Frequency range (-6dB) | 47 Hz - 45 kHz |
Typical in-room bass response (-6dB) | 26 Hz |
Frequency response (±3dB) | 79 Hz - 28 kHz |
Harmonic distortion (90dB, 1m) | <0.4 175 Hz - 20 kHz <0.1 300 Hz - 10 kHz |
Maximum output | 106 dB |
Amplifier power (recommended) | 40-100 W |
Nominal impedance | 8 Ω (min. 3.5 Ω) |
Sensitivity (2.83V/1m) | 85 dB |
Weight | 7.8 kg (17.2 lbs.) |
Dimension (H x W x D) with terminals | 302 x 200 x 280.5mm |
2 channels driven, 20Hz - 20kHz, 8Ω | 80W |
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2 channels driven, 1kHz, 4Ω | 120W |
Harmonic distortion, 80 power, 8Ω at 1kHz | 0.002 |
Number of inputs | 3 (RCA pairs) |
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Signal/noise ratio (A-wtd, ref. 50W, 1V input) | 106dB |
Frequency response | 20Hz—20kHz ± 0.2dB |
Input impedance | 47k? + 100pF |
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Frequency response (ref. RIAA curve) | 20Hz—20kHz ± 1dB |
Bluetooth Version | Bluetooth 5.2 with AptX Adaptive technology and AAC |
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Supported Sample Rates (kHz) | Coaxial (RCA) 192, 176.4, 96, 88.2, 48, 44.1Optical (Toslink) 192, 176.4, 96, 88.2, 48, 44.1 |
Bit depths (bit) | 24, 16 |
Frequency response (filter 1) | 20Hz—20kHz ± 0.2dB |
Signal/noise ratio (A-wtd, ref. 50W, 0dBFS) | 109dB |
Maximum output level (RMS) into 32?/300? | 2.5V/5Vrms |
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Load range | 16Ω - 2kΩ |
Mains voltage | 100V or 110–120V or 220–240V, 50–60Hz |
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Power consumption (maximum) | 500W |
Power consumption (standby) | <0.5W |
Dimensions W x D (including speaker terminals) x H (including feet) | 431 x 344 x 98mm |
Weight (net) | 10kg |
Weight (packed) | 13kg |