KEF Reference 4c Manual

KEF Højttaler Reference 4c

Læs nedenfor 📖 manual på dansk for KEF Reference 4c (4 sider) i kategorien Højttaler. Denne guide var nyttig for 40 personer og blev bedømt med 4.5 stjerner i gennemsnit af 2 brugere

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Now with Metamaterial Absorption Technology
The Reference has continually set the benchmark for loudspeakers since its launch in 1973. The perfect
reproduction of recorded sound is what The Reference has always stood for. Pioneering the use of digital
technologies to achieve the highest audio accuracy, every pair of The Reference series can be matched within
half a decibel to the laboratory-maintained reference standard. Exact pair matching delivers perfect stereo
reproduction, so these revolutionary speakers won acclaim for the superior acoustic precision. Hence the
method became the name: The Reference.
Since the first generation, The Reference has been continuously enhanced by new innovations and
technological developments. In the latest evolution, The Reference incorporates our latest innovation:
Metamaterial Absorption Technology1 (MAT™) and continues to be the supreme expression of KEF’s
philosophy, where advanced engineering meets inspired design.
The Reference are loudspeakers for serious audiophiles who aspire to the perfect enjoyment of music and
movies. Whether used in a traditional two-channel HiFi or a multi-channel home theatre, listeners will be able
to experience the realistic, immersive sound with breath-taking dynamics, and levels of accuracy that reveal
details never noticed before.
A class apart
The Reference range encompasses two three-way floorstanding speakers, a formidable three-way
standmount speaker, and two three-way centre speakers that can be used as Left-Centre-Right (LCR)
speakers. The Reference combines phenomenal high-fidelity performance with complete multi-channel
versatility.
And now new technological advances make The Reference range even more impressive. At the heart of The
Reference range now sits a bespoke 12th generation Uni-Q with MAT driver array. This new addition truly
puts The Reference range in a class of its own.
Revolutionary sound absorption with MAT™
A truly revolutionary tool in the KEF acoustic armoury, Metamaterial Absorption Technology (MAT) is a highly
complex maze-like structure, where each of the intricate channels efficiently absorbs a specific frequency.
When combined, the channels act as an acoustic black hole, absorbing 99% of the unwanted sound that
comes from the rear of the tweeter, eliminating the resulting distortion and providing a purer, more natural
acoustic performance.
A result of joint development with the Acoustic Metamaterials Group, using MAT breaks completely new
ground in loudspeaker design, and once again demonstrates KEF’s unrelenting passion for developing new
technologies to improve your listening experience. Metamaterials are specially developed structures that
use existing materials in such a way that they exhibit new, desirable properties that are simply not found in
naturally occurring substances.
12th Generation Uni-Q with MAT™ delivers
The 12th generation Uni-Q with MAT in The Reference is a bespoke driver array engineered to deliver pristine
performance across this exceptional range of loudspeakers. It’s the result of decades of accumulated in-house
knowledge and the application of cutting-edge simulation and analysis tools. The developments are many and
all play a part in The Reference’s pristine performance.
As a starting point, KEF engineers re-engineered the tweeter gap damper to maximise the space at the back
of the tweeter for the new metamaterial absorber. Optimising the cavity shape and strategically placing two
rings of porous material effectively tame the resonances and imperfections, thus greatly improving detail and
clarity.
A new ultra-low distortion midrange motor design uses a copper ring embedded into the motor gap to
minimise inductance and variation of inductance with coil position. This lowers the midrange THD and
reduces thermal compression, leading to improved efficiency.
The Uni-Q driver array is fully decoupled to prevent unwanted vibrations from muddying the sound. A new
flexible decoupling chassis is designed to reduce vibration and remove coloration. It ensures that any vibration
generated by the mid and high-frequency motor system is not transmitted to the loudspeaker cabinet.
THE REFERENCE
HiFi Speakers
1 Metamaterial Absorption Technology is a joint development with Acoustic Metamaterials Group.
Summary of features
• Metamaterial Absorption Technology eliminates
99% of high-frequency distortion for pure, natural
sound
• Bespoke 12th generation Uni-Q with MAT driver
array for exceptional acoustic accuracy
• Enhanced crossover design fine-tuned the signal
path for maximum clarity
• Optimised cabinet design for best acoustic
performance
• Five models: Reference 1 Meta, Reference 3 Meta,
Reference 5 Meta, Reference 2 Meta, Reference 4
Meta
• Available in 5 finishes
• With mounting inserts to secure on KEF S-RF1
Floor Stand (available as separate item)
• The Reference Series Grille set for each model is
available as separate item

Produkt Specifikationer

Mærke: KEF
Kategori: Højttaler
Model: Reference 4c

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