KEF R7 Mid-sized Three-way Floorstander (pair)

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Colour: Black Gloss
Price:
Sale priceA$6,995.00

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Description

R7

Mid-sized three-way floorstander

The R7 is the mid-sized floorstander in KEF's new R Series, very powerful yet not too large it brings music and movies to life.

With a pair of 165mm (6.5 in.) hybrid aluminium bass drivers and a Uni-Q combining a 125mm (5 in.) midrange driver and 25mm (1 in.) aluminium dome tweeter, R7 outperforms all expectations.

The Details

TECHNOLOGY
THE SCIENCE OF SOUND

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.

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.

Cabinet Bracing

A solid platform is imperative for great sound. The new R Series benefits from Constrained layer damping. This system utilises internal braces joined by a ‘lossy’ interface and is highly effective at dissipating unwanted vibrations that would otherwise artificially change the sound and music.

Microfibre Grilles

The R Series was created to sound its best with or without grilles. The microfibre grille design is a first for KEF and not only looks beautiful but has a negligible effect on performance. They continue the tone-on-tone approach to match the various cabinet finishes and the edges are burnished for a suede-like effect.

Specifications

DESIGN

Three-way bass reflex

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

WEIGHT

31.4 kg (69.2 lbs.)

DIMENSION (H X W X D)

1062 x 200 x 383.5 mm (41.8 x 7.9 x 15.1 in.) with terminal*

DIMENSION (H X W X D)

1108.9 x 310.6 x 383.5 mm (43.7 x 12.2 x 15.1 in.) with terminal with Plinth*

DIMENSION (H X W X D)

1062 x 200 x 360 Cabinet only

CROSSOVER FREQUENCIES

400Hz, 2.9kHz

FREQUENCY RANGE

33Hz-50kHz (-6dB)

TYPICAL IN-ROOM BASS RESPONSE

27Hz (-6dB)

FREQUENCY RESPONSE

48Hz-28kHz (±3dB)

HARMONIC DISTORTION

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

MAXIMUM OUTPUT

111dB

AMPLIFIER POWER

15-250W (recommended)

NOMINAL IMPEDANCE

8Ohms (min.3.2Ohms)

FINISHES

Black Gloss / White Gloss / Walnut

DOWNLOADS

R Series White Paper
R Series Brochure
R Series Information Sheet
R Series User ManualMaintenance Guide for R Series Microfibre Grille

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