Skip disability assistance statement.

Welcome to our website! As we have the ability to list over one million items on our website (our selection changes all of the time), it is not feasible for a company our size to record and playback the descriptions on every item on our website. However, if you have a disability we are here to help you. Please call our disability services phone line at 515-993-4241 during regular business hours and one of our kind and friendly personal shoppers will help you navigate through our website, help conduct advanced searches, help you choose the item you are looking for with the specifications you are seeking, read you the specifications of any item and consult with you about the products themselves. There is no charge for the help of this personal shopper for anyone with a disability. Finally, your personal shopper will explain our Privacy Policy and Terms of Service, and help you place an order if you so desire.

 
Image Feature

Uni-Q Driver Array

Developed by KEF in 1988, the Uni-Q driver array acts as a single point source, providing pristine sound across a wider area. The R Series benefits from a new incarnation of this driver array, with advantages over its predecessors that include a new midrange motor system that drastically reduces distortion.
(P)Air moving across the minute gaps between Uni-Q's separate elements creates tiny resonances, but KEF engineers have reduced the impact of these necessary gaps by opening a cavity behind the drivers and adding resonance-absorbing damping material for more precise, purer treble.(/P)

Image Feature

Shadow Flare

Derived from the Reference Series, the Shadow Flare reduces harmful cabinet diffraction and allows the Uni-Q to work at its highest level.More than just a trim ring, Shadow flare is a precision-designed surface that extends the waveguide effect of Uni-Q. The tweeter no longer has line of sight of the cabinet edges, creating a shadow region' at the points where the potential for diffraction is highest, minimising the acoustic impact to negligible levels.The result is improved clarity, particularly when it comes to the subtle nuances of plucked strings and percussive sounds.

Image Feature

Low Frequency Drivers

The R Series' dedicated low-frequency drivers have a two-part structure, where a shallow concave aluminium skin sits atop a paper cone. This adds stiffness, while the cone's unique geometry reduces resonances and delivers the pistonic movement that makes these drivers time so well.The new drivers also have a completely redesigned magnet system that creates a more even magnetic field, and a design of spider that reduces harmonic distortion for a cleaner, more precise sound.

Image Feature

Cabinet Bracing

The R Series benefits from Constrained Layer Damping bracing originally developed for the multiple award-winning LS50, and a new internal bracing layout. This combination brings the R Series closer to the internal structure of the Reference Series, and helps it deliver music as it is supposed to sound, without any unwanted extras.

Image Feature

Flexible Port Technology

KEF engineers computer-modeled the ideal crossover networks before exhaustively auditioning every high grade component, individually and together, to select those with the lowest distortion and the smoothest response. Perfectionism takes time, but the difference is plain to hear. Nothing is overlooked - Reference crossovers are even mounted on separate boards and decoupled from the cabinet walls to minimize vibration and crosstalk.

Uni-Q Driver Array Developed by KEF in 1988, the Uni-Q driver array acts as a single point source, providing pristine sound across a wider area. The R Series benefits from a new incarnation of this driver array, with advantages over its predecessors that include a new midrange motor system that drastically reduces distortion.(BR)(P)Air moving across the minute gaps between Uni-Q's separate elements creates tiny resonances, but KEF engineers have reduced the impact of these necessary gaps by opening a cavity behind the drivers and adding resonance-absorbing damping material for more precise, purer treble.(/P)

Shadow Flare Derived from the Reference Series, the Shadow Flare reduces harmful cabinet diffraction and allows the Uni-Q to work at its highest level.More than just a trim ring, Shadow flare is a precision-designed surface that extends the waveguide effect of Uni-Q. The tweeter no longer has line of sight of the cabinet edges, creating a shadow region' at the points where the potential for diffraction is highest, minimising the acoustic impact to negligible levels.The result is improved clarity, particularly when it comes to the subtle nuances of plucked strings and percussive sounds.

Low Frequency Drivers The R Series' dedicated low-frequency drivers have a two-part structure, where a shallow concave aluminium skin sits atop a paper cone. This adds stiffness, while the cone's unique geometry reduces resonances and delivers the pistonic movement that makes these drivers time so well.The new drivers also have a completely redesigned magnet system that creates a more even magnetic field, and a design of spider that reduces harmonic distortion for a cleaner, more precise sound.

Cabinet Bracing The R Series benefits from Constrained Layer Damping bracing originally developed for the multiple award-winning LS50, and a new internal bracing layout. This combination brings the R Series closer to the internal structure of the Reference Series, and helps it deliver music as it is supposed to sound, without any unwanted extras.

Flexible Port Technology KEF engineers computer-modeled the ideal crossover networks before exhaustively auditioning every high grade component, individually and together, to select those with the lowest distortion and the smoothest response. Perfectionism takes time, but the difference is plain to hear. Nothing is overlooked - Reference crossovers are even mounted on separate boards and decoupled from the cabinet walls to minimize vibration and crosstalk.

Model R2c
Design Three-way closed box
Drive Units Uni-Q Driver Array:
HF: 25mm (1in.) vented aluminium dome
MF: 125mm (5in.) aluminium cone
Bass Driver:
LF: 2 x 130mm (5.25in.) hybrid aluminium
Crossover frequency 400Hz, 2.9kHz
Frequency range (-6dB)
Typical in-room bass response (-6dB)
64Hz - 50kHz
49Hz
Frequency response ( 3dB) 74Hz - 28kHz
Harmonic distortion (90dB, 1m) <0.3% 120Hz - 20kHz
Maximum output 110dB
Amplifier power (recommended) 15 - 200W
Nominal Impedance 8 (min.3.2 )
Sensitivity (2.83V/1m) 87dB
Weight * 16.9 kg (37.3 lbs.)
Dimension (H x W x D)
with terminal *
175 x 550 x 308.5 mm
(6.9 x 21.7 x 12.1 in.)
Finishes Black Gloss / White Gloss / Walnut
​​​​​​​