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KEF R3- Bookshelf Speaker Black (Pair)

Features: The R3 stand mount shares the same drivers 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 a 25mm (1 in.) aluminum dome tweeter Uni-Q array that pushes performance to new extremes | Manufacturer Warranty : 3 years
₹ 1,99,152.00 excl tax
Manufacturer: KEF
SKU: KEF-BSS-B-R3
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| Key Features
 
  • Uni-Q
  • Shadow Flare
  • Low-Frequency Drivers
  • Cabinet Bracing
  • Flexible Port Technology

 

| Description
 
The R3 bookshelf shares the same drivers as the range-topping R11 in a full-range design that defies expectations. A true 3-way speaker the R3 has a dynamic 165mm (6.5 in.) bass driver and a 125mm (5 in.) midrange driver with a 25mm (1 in.) aluminum dome tweeter Uni-Q array that elevates the performance to a whole new level.
 

Benefits of KEF R3 Floorstanding Speaker:

 

Uni-Q Driver Array

 

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

 

 

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.

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 pistoaluminumnic movement for punch and speed. KEF has also increased linearity in the magnet system which means more impressive and impactful bass.

 

Flexible Port Technology

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 are calculated to delay the onset of turbulence and the flexible port walls prevent resonances from coloring the midrange.

 

| Specifications 

 

 Brand & Model 

 KEF R3- Bookshelf Speaker 

 Enclosure Type

 3- Way Bass Reflex

 Frequency Response

 52Hz-28kHz (±3dB)

 Nominal Impedance

 8 Ohms (min.3.2 Ohms)

 Sensitivity

 88dB (2.83V/1m)

 Frequency Range

 38Hz-50kHz (-6dB)
 Crossover Frequencies
 400Hz, 2.9kHz
 Harmonic Distortion
 <0.3% 120Hz-20kHz (90dB, 1m)

 Max Power Output

 110dB

 Driver Units

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

 Cabinet Finish

 Black Gloss / White Gloss / Walnut

 Dimensions (WxHxD)

 422.2 x 199.6 x 335.5 mm (16.6 x 7.9 x 13.2   in.) with terminal*
 
 422 x 199.6 x 312 Cabinet only
 
 Weight
 13.5 Kg(29.8lbs.)

 

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| Key Features
 
  • Uni-Q
  • Shadow Flare
  • Low-Frequency Drivers
  • Cabinet Bracing
  • Flexible Port Technology

 

| Description
 
The R3 bookshelf shares the same drivers as the range-topping R11 in a full-range design that defies expectations. A true 3-way speaker the R3 has a dynamic 165mm (6.5 in.) bass driver and a 125mm (5 in.) midrange driver with a 25mm (1 in.) aluminum dome tweeter Uni-Q array that elevates the performance to a whole new level.
 

Benefits of KEF R3 Floorstanding Speaker:

 

Uni-Q Driver Array

 

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

 

 

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.

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 pistoaluminumnic movement for punch and speed. KEF has also increased linearity in the magnet system which means more impressive and impactful bass.

 

Flexible Port Technology

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 are calculated to delay the onset of turbulence and the flexible port walls prevent resonances from coloring the midrange.

 

| Specifications 

 

 Brand & Model 

 KEF R3- Bookshelf Speaker 

 Enclosure Type

 3- Way Bass Reflex

 Frequency Response

 52Hz-28kHz (±3dB)

 Nominal Impedance

 8 Ohms (min.3.2 Ohms)

 Sensitivity

 88dB (2.83V/1m)

 Frequency Range

 38Hz-50kHz (-6dB)
 Crossover Frequencies
 400Hz, 2.9kHz
 Harmonic Distortion
 <0.3% 120Hz-20kHz (90dB, 1m)

 Max Power Output

 110dB

 Driver Units

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

 Cabinet Finish

 Black Gloss / White Gloss / Walnut

 Dimensions (WxHxD)

 422.2 x 199.6 x 335.5 mm (16.6 x 7.9 x 13.2   in.) with terminal*
 
 422 x 199.6 x 312 Cabinet only
 
 Weight
 13.5 Kg(29.8lbs.)

 

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Features: The R3 stand mount shares the same drivers 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 a 25mm (1 in.) aluminum dome tweeter Uni-Q array that pushes performance to new extremes | Manufacturer Warranty : 3 years
₹ 1,99,152.00 excl tax