Boxe KEF R7

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Varianta selectata: Piano Black Gloss

Cod produs: SP3999BA

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9.999 lei 15.999 lei

    • 30 de zile perioada de retur
    • Garantie 24 luni
    • Transport gratuit pentru comenzi peste 100 RON in Romania
    • Livrare prin curier sau ridicare din showroom Bucuresti
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    Coduri produs: SP3999BA SP3999AA

    Descriere

    • Boxa de podea
    • Difuzoare : 1 x tweeter 2.5 cm + 1 x medii 12.5 cm + 2 x woofer 16.5 cm - Design Coaxial
    • Raspuns in frecventa : 33 Hz – 50 kHz
    • Sensibilitate : 88dB ( 2.83V @ 1 m )
    • Impedanta nominala: 8 ohm (min. 3.2ohm)
    • Amplificare recomandata: 15-250 W

    Alte informatii

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    The only thing to remain the same is the name

    The new KEF R Series has been completely re-engineered from the ground up. Decades of experience and our unbridled passion for music come together in the new R Series. Combining innovations from the Reference Series with bespoke technologies the new R Series delivers more detail, deeper insight and greater excitement.


    Flagship three-way floorstander

    The largest model in the R Series combines four bass drivers and the latest generation Uni-Q for a powerful and refined sound. With hybrid aluminium bass drivers and a 12th generation Uni-Q for mid and treble the mighty R11is extremely capable. Using technology from KEF Reference it delivers clarity, finesse and serious bass.


    Feel the music

    When you want to forget the world and simply lose yourself in sound, R Series will take you there. At KEF, the quest to develop perfect loudspeakers has lasted more than 50 years. Like you, we don’t just want to hear music; we want to experience it, get inside it and feel part of it.


    Sound is the real story

    In the movie world, the best sound engineers are capable of weaving ever more wonderful sonic webs and the new R Series is your ticket for getting the best out of movies, delivering the natural, consistent sound essential for a phenomenal surround sound experience.


    Uni-Q

    The evolution of KEF's Uni-Q driver reaches its 12th generation in the R Series. Using simulation and analysis tools KEF’s engineers have been able to dramatically reduce colouration by cutting resonance in the tiny gaps between Uni-Q’s elements. The result is purer and more precise sound with stronger imaging.

    Shadow Flare

    The Shadow Flare is an innovative way to cut harmful high frequency cabinet diffraction. It's a carefully profiled transition that extends the waveguide effect of Uni-Q. The treble escapes naturally because the ‘shadow region’ stops it getting to the cabinet edges. The result is vastly improved fine detail.

    Cabinet Bracing

    The Shadow Flare is an innovative way to cut harmful high frequency cabinet diffraction. It's a carefully profiled transition that extends the waveguide effect of Uni-Q. The treble escapes naturally because the ‘shadow region’ stops it getting to the cabinet edges. The result is vastly improved fine detail.

    Low Frequency Drivers

    R Series bass drivers have a two-part structure with a shallow concave aluminium skin atop a paper cone. Combine this stiffness with the cone’s unique geometry and you get near pistonic movement for punch and speed. KEF has also increased linearity in the magnet system which means more impressive and impactful bass.

    Flexible Port Technology

    When it comes to generating deep, articulate bass, port design is crucial. The R Series ports have innovative flexible walls. Using computational fluid dynamics the flare and profile of each port is calculated to delay the onset of turbulence and the flexible port walls prevent resonances from colouring the midrange.

    Technical Specifications

    Design: Three-way bass reflex

    Sensitivity (2.83V/1m): 88dB

    Frequency range (-6dB): 33Hz - 50kHz

    Typical in-room bass response (-6dB): 27Hz

    Frequency Response (±3dB): 48Hz - 28kHz

    Amplifier power (recommended): 15-250W

    Harmonic distortion (90dB, 1m): <0.3% 120Hz - 20kHz

    Crossover frequency: 400Hz, 2.9kHz

    Drive units:
    Uni-Q Driver Array:
    HF: 25mm (1in.) vented aluminium dome
    MF: 125mm (5in.) aluminium cone
    Bass Driver:
    LF: 2 x 165mm (6.5in.) hybrid aluminium

    Maximum Output: 111dB

    Nominal impedance: 8Ω (min.3.7Ω)

    Dimensions (H x W x D): 1062 x 200 x 383.5 mm (41.8 x 7.9 x 15.1 in.)

    Dimensions (H x W x D) with terminal with Plinth: 1108.9 x 310.6 x 383.5 mm (43.7 x 12.2 x 15.1 in.)

    Net Weight: 31.4 kg (69.2 lbs.)

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