KEF's innovative, patented Uni-Core™ technology redefines the physical space that high-performance speakers and subwoofers require for deep and precise bass.
Through sheer engineering skill and creativity, KEF has revolutionized traditional subwoofer design and created Uni-Core™ technology that delivers deeper bass in ultra-compact cabinets.
The company itself calls KC62 "The Biggest Small Subwoofer", with its British humor, playing with the word "biggest" and using it not in the literal sense ("bigger than the others"), but in the meaning of "the most important, significant, grandiose".
The KC62 is an ultra-compact subwoofer capable of delivering deep and precise bass. Its power is so great, and the device itself is so small - it's the size of a soccer - that outside of our high-tech world, explaining KC62's astonishing abilities would be nothing short of magical.
The company's engineers used three state-of-the-art proprietary technologies: Uni-Core, P-Flex Surround and Smart Distortion Control. The result is that all subwoofer designers and designers will now have to play by KEF's new rules.
We have already written about the Uni-Core technology; let us remind you that we are talking about the twin driver of a special design - two voice coils of different diameters have a common center and use the same common space inside the driver to work.
KEF claims that its Uni-Core technology reduces the enclosure size by more than a third, with the same or greater driver range than the much larger KC62 subwoofers.
P-Flex Surround technology has a second, unofficial name: Origami Surround.
It was the traditional Japanese art of origami that led KEF engineers to the idea of creating a unique folded (corrugated) cone. It effectively copes with the sound pressure inside the speaker cabinet without losing sensitivity.The two 165mm diameter cones are fitted with suspensions that KEF calls "P-Flex" or "Origami".
- "P-Flex is a completely new speaker surround (the manufacturer has filed for a patent). It resists acoustic pressure inside the enclosure without limiting sensitivity, as traditional half-circular suspensions in conventional speakers do. KEF calls it "origami" because the appearance of the surround is reminiscent of the Japanese art of paper folding. Whichever name you choose, however, the fact remains that the surround allows the drivers to move with greater amplitude, resulting in deeper bass and more accurate bass with significantly reduced distortion.
Finally, Smart Distortion Control technology reduces nonlinear distortion. The principle used is similar to an electromechanical feedback system. But unlike EMOS, no special sensors are used - instead, the current in the voice coil is measured, which allows instant compensation for detected non-linear distortion.
- "Essentially, the circuit continuously monitors the current in the voice coil, detecting and then correcting for any nonlinear distortion. The SDCT works in conjunction with KEF's DSP iBX (Intelligent Bass Extension) and SmartLimiter algorithms to ensure that the two 500W Class D amplifiers that power the drivers provide the perfect signal."
The KC62 subwoofer is versatile and equally effective for listening to music, watching movies or playing video games.
The new KC62 1,000-watt subwoofer exceeds traditional expectations of what a subwoofer can achieve based on its size.
Technical features of the KEF KC62 active subwoofer
- Equipped with a Class D amplifier rated at 1000 watts RMS (2 x 500 watts).
- Frequency range 11 - 200 Hz (±3 dB), maximum sound pressure 105 dB.
- Intelligent Distortion Control Technology
- Music Integrity Engine with iBX, SmartLimiter, and Room Placement settings
- Algorithms for signal processing are embedded in the processor, and there are five presets of alignment of placement in the room, which allow you to optimize the performance of KC62 no matter where you put it in the room - next to the wall, in a corner, inside a closet or on the platform in the open air, another mode involves adjusting directly to the features of the room.
- The case is made of extruded (pressed) aluminum;
- The colors are black (Carbon Black) and white (Mineral White).
- Dimensions (H x W x D) - 246 x 256 x 248 mm;
- The subwoofer weighs 14 kg.
The presence of a linear high-frequency output means that the subwoofer can be used in conjunction with external active speakers, such as the popular KEF LS50 shelf monitors or the wireless KEF LSX.
It is quite possible that with the advent of Uni-Core technology developed by KEF engineers, the rule "You want to get a deep juicy bass - buy a big sub" no longer works, and the era of bulky subwoofers is coming to an end...