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KEF Blade Freestanding Speaker with discrete bass chambers and twinned pairs of bass drivers
Connector Type | Binding Posts |
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Sensitivity | 90 dB |
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Crossover Type | 350Hz, 3kHz |
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Sold As | Each |
Enclosure Type | Compound Cabinet Form |
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Tweeter Composition | Aluminum |
Bass Size | 9 |
Driver Component Size | 5 |
Product Weight (lbs.) | 120 |
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Manufacturer Warranty | 5 Year |
Color | Black/White |
Impedance | 4 Ohms |
Depth (in.) | 21.2 |
Height (in.) | 62.5 |
Width (in.) | 14.3 |
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When we gave our engineers free rein to create a fitting showcase for our technology leadership, they developed a revolutionary prototype that looked and performed like no other: Concept Blade, the world's first single apparent source loudspeaker.
Like listening to one voice rather than many, sound from a single source is inherently clearer. Not only are the acoustic centers of the HF and MF drivers in the Blade’s Uni-Q array coincident, but the four LF drivers are mounted symmetrically equidistant from it so that their acoustic centers occupy exactly the same point in space.
To avoid dissipating the energy of such potent bass drivers in exciting the cabinet (and thereby generating resonance, especially at high volume), the large kinetic forces involved are cancelled out by mounting the LF drivers rigidly together, back-to-back. By minimizing cabinet coloration, this highly effective configuration partly accounts for the Blade’s natural-sounding and engagingly musical performance.
The twinned pairs of bass drivers are mounted in discrete chambers separated by an internal partition. By increasing the frequency of any internal standing waves to way beyond the crossover point, this reduces the need for damping material (which can otherwise impair bass quality). Nothing has been overlooked in the quest for the ultimate clarity, right across the frequency range.
With a speaker as ambitious as the Blade, short cuts are out of the question. Everything has to be as right as it can possibly be.
Two pairs of the finest audiophile quality WBT connectors allow bi-wiring to optimize the retrieval of low level detail in the music.
The simple low order crossovers specified for the Blade employ the best components available, carefully selected by a rigorous auditioning process so that every part of the signal path is fine-tuned for maximum clarity.
The patented screw-in linking plugs are to full audiophile specification (as well as simplifying set-up by eliminating fiddly wiring links). All the crossover components are individually wired by hand rather than mounted on a conventional printed circuit board. As well as being more environment-friendly, this optimizes both reliability and sound quality by assuring the cleanest possible signal transmission.
Garnet, Sapphire, Grigio, Racing red, Racing blue, Pale gold, Orange sorbet, Graphite, Stardust, Lemon sorbet, Lime sorbet or Diamond black
Product Weight (lbs.) | 120 |
Manufacturer Warranty | 5 Year |
Color | Black/White |
Impedance | 4 Ohms |
Depth (in.) | 21.2 |
Height (in.) | 62.5 |
Width (in.) | 14.3 |
Connector Type: | Binding Posts |
Enclosure Type: | Compound Cabinet Form |
Tweeter Composition: | Aluminum |
Bass Size: | 9 |
Driver Component Size: | 5 |
Crossover Type: | 350Hz, 3kHz |
Sold As: | Each |
Sensitivity: | 90 dB |