Kef's 5' Tall Concept Blade Speakers
Kef's Concept Blade speaker took over three years to develop and although the unit is a 'one off' demonstration speaker the research concepts and technologies that it embodies will surely trickle down to the rest of the KEF lineup. The speaker takes KEF's familiar Uni-Q array concept (where a tweeter is positioned coaxially within a midrange or mid-bass driver, with the drivers sharing the same "acoustic centers") to a much higher level. In essence, Concept Blade is designed to behave as if the entire loudspeaker has become a giant, full-range Uni-Q array. The Concept Blade is a 10th-generation forward-firing Uni-Q array. KEF then surrounds that array with four side-firing 10-inch bass drivers positioned symmetrically around the Uni-Q array. Together, the four bass drivers share the same combined acoustic center as the front-firing Uni-Q array, essentially become part of it. The cabinet itself features a curved-wall enclosure made of a carbon fiber/balsa wood composite. The compound curves of the Concept Blade enclosure are said to give the cabinet much greater rigidity and resistance to resonance than conventional flat-wall enclosures. A video demonstration of the tecnology can be found at Kef's website.
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