REFERENCE 4C Centre Channel Speaker
Three-way centre channel speaker
For movie lovers looking for total immersion, Reference 4c is the paradigm. For clarity, detail and emotional depth, it's a revelation.
Available Finishes: Copper Black Aluminium, Blue Ice White, Silver Satin Walnut
A CLASS APART
The Reference is the physical embodiment of KEF's Total System Design philosophy. Every component is optimised both within itself and as part of the whole, while every drive unit is given the chance to perform to the best of its considerable ability. The result is a loudspeaker that performs far beyond the sum of its parts.
As the main source of dialogue and vocals, the centre channel is critical to your enjoyment of what's on screen. With KEF's superlative new 125mm (5 inch) MF/HF Uni-Q driver array and four 165mm (6.5 inch) bass drivers, the Reference 4c reproduces every last detail exactly as the director or the artist intended.
Two drivers, a single point
At the heart of The Reference is the Uni-Q™ point source driver array. A state-of-the-art vented aluminium dome tweeter at the exact acoustic centre of a highly sophisticated midrange driver that delivers flawless natural sound across a wider listening area.
A strong foundation
Clean, rich and articulate bass is the foundation of great stereo or multichannel sound. KEF's Reference Series bass driver has a massive vented magnet assembly, a large aluminium voice coil and an exceptionally light and stiff alloy cone. Whatever the volume, dynamics and power handling are superb.
The smallest details, revealed
Shadow Flare drastically reduces harmful cabinet diffraction, allowing the Uni-Q to work at its highest level. A precision-designed surface extends the waveguide effect of Uni-Q for improved clarity, particularly when it comes to the subtle nuances of plucked strings and other percussive sounds.
Hand finished in pair-matched wood veneers, The Reference cabinets have computer-optimised bracing geometry to minimise secondary radiation from the sides and Constrained Layer Damping to turn what little vibration is left into heat.
Flexible port technology is used to reduce port resonance. Each port is adjustable to allow users to modify the sound to suit their room. The flare and profile of each port is calculated by computational fluid dynamics to avoid turbulent air noise that might colour the sound.
KEF’s engineers use advanced software to model the ideal crossover. But every component is auditioned by the ultimate measure: the human ear. Perfection takes time, but the results are plain to hear. Reference crossovers are even decoupled from the cabinet to minimise vibration and crosstalk.
MADE IN MAIDSTONE
Since 1973, Reference has been designed, engineered, and crafted in Maidstone, Kent. When you experience The Reference, you don't just experience the best: you experience all of the history that has gone into the creation of the benchmark.
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|Design||Three-way bass reflex|
|Drive Units||Uni-Q driver array:
HF: 25mm (1in.) vented aluminium dome
MF: 125mm (5in.) aluminium
LF: 4 x165mm (6.5in.) aluminium
|Frequency range free field (-6dB)||Short port: 43Hz - 45kHz
Long port: 40Hz - 45kHz
|Frequency range typical in room bass response (-6dB)||33Hz|
|Frequency response (±3dB)||48Hz – 35kHz|
|Crossover frequency||350Hz, 2.8kHz|
|Amplifier Requirements||50-400 W|
|Sensitivity (2.83V/ 1m)||90dB|
|Harmonic distortion 2nd & 3rd harmonics (90dB, 1m)||<0.5% 40Hz – 100kHz
<0.2% 200Hz – 10kHz
|Maximum output (peak sound pressure level at 1m with pink noise)||116dB|
|Impedance||8Ω (min. 3.2Ω)|
|Dimensions - with grille, terminal & plinth (H x W x D)||205 x 1090 x 470 mm
(8.1 x 42.9 x 18.5 in.)
|Available Finishes||Silver Satin Walnut, Copper Black Aluminum, Blue Ice White, Deep Gloss Black|
Press and Awards
|Home Cinema Choice Reference Status, High End Hero|
|"This system is British surround high-fidelity at the utter state-of-the-art. And it’s easily worthy of its Reference name."|
|Magazine / Issuing Body: Home Cinema Choice|
|Country of Publication: United Kingdom|
|Product: Reference 5, Reference 3, Reference 4c, Reference 8b|