KEF R3 Bookshelf Speaker (Pair)

Description

The KEF R3 Bookshelf Speaker shares the same drivers as the range topping R11 in a full range designe that defies expectations. A true 3-way speaker the R3 has a powerful 165mm (6.5 in.) bass driver and a 125mm (5 in.) midrange driver with 25mm (1 in.) aluminium dome tweeter Uni-Q array that pushes performance to new extremes.

*This product may take 6-8 weeks for delivery. Floorstand (pair) not included.

KEF R3 BOOKSHELF SPEAKER FEATURES

• A true 3-way speaker the R3 has a powerful 165mm (6.5 in.) bass driver and a 125mm (5 in.) midrange driver with 25mm (1 in.) aluminium dome tweeter Uni-Q array that pushes performance to new extremes.
• Frequency response (±3dB) – 52Hz – 28kHz
• The R3 includes matching precision cut magnetic microfibre grilles.
• 12th Generation Uni-Q Driver provides a pure and precise sound with outstanding sonic imaging.
• Available in Gloss Black, Gloss White, and Real Wood Veneer Walnut

KEF R3 BOOKSHELF SPEAKER SPECIFICATIONS

• Weight: 13.5 kg (29.8 lbs.)
• Dimensions (H x W x D): 422.2 x 199.6 x 335.5 mm (16.6 x 7.9 x 13.2 in.) with terminal*
• Dimensions (H x W x D): 422 x 199.6 x 312 Cabinet only
• Design: Three-way bass reflex
• Frequency Range: 38Hz-50kHz (-6dB)
• Typical In-Room Bass Response: 30Hz (-6dB)
• Frequency Response: 58Hz-28kHz (±3dB)
• Harmonic Distortion: <0.3% 130Hz-20kHz (90dB, 1m)
• Maximum Output: 110dB
• Amplifier Power: 15-180W
• Nominal Impedance: 8 ohms (min.3.2 ohms)
• Drive Units:
  Uni-Q Driver Array
  HF: 25mm (1in.) vented aluminium dome
  MF: 125mm (5in.) aluminium cone
  Bass Driver:
  LF: 165mm (6.5in.) hybrid aluminium
• Crossover Frequencies: 400Hz, 2.9kHz
• Finishes: Black Gloss / White Gloss / Walnut

THREE-WAY STAND MOUNT

The R3 stand mount shares the same Uni-Q driver array as the range topping R11 in a full range design that defies expectations. A true 3-way speaker the R3 has a powerful 165mm (6.5 in.) bass driver and a 125mm (5 in.) midrange driver with 25mm (1 in.) aluminium dome tweeter Uni-Q array that pushes performance to new extremes.

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.

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.

KEF R3 BOOKSHELF SPEAKER – 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.