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KEF - R500 Tower Speakers (Pair)


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High-End Accuracy, Delicacy, Transparency, and Coherency in Tower Loudspeakers That Serve Both Music and Movies: Overachieving KEF R500 Features Trickle-Down Blade Technology

KEF Blade technology in a sub-$5k pair of tower loudspeakers that incorporate the company's hallmark Uni-Q driver array? That's the short introduction to the stellar R500, a model that has won acclaim from the likes of Hi-Fi News, What Hi-Fi?, Soundstage!, and other international press outlets. If you're looking for high-end accuracy, delicacy, and transparency at a spectacular price, R500 fits the bill – and works equally well as a dedicated stereo or home-theater speaker. A well-rounded speaker that handles any type of music or film dialog with ease, the three-way bass-reflex R500 delivers performance that belies the fact its the smallest floorstander in R Series. Two 5.25-inch aluminum bass drivers that surround a one-inch vented aluminum-dome tweeter and five-inch aluminum midrange ensure you're never shortchanged on dynamic, pulse-quickening sound.

Designed so it can inconspicuously blend into any interior while serving its purpose without compromise, R500 features FEA-optimized internal architecture that eliminates the ruinous resonance common to many floorstanders. Extra stability arrives courtesy of extensions that bolt to the underside of the unit. Read more about the cutting-edge KEF technology invested in R500 below. At present, know that our 100% Satisfaction Guarantee gives you the risk-free security you need to audition this overachiever in your home today.

"...a worthy winner and an essential audition."
Hi-Fi News, Outstanding Product Award

"The R500 is one of the very best values in hi-fi today..."
Soundstage!, Product of the Year Award

Uni-Q Driver Array and Tangerine Waveguide
Midrange response is fast and clean thanks to R500's braced magnesium/aluminum alloy cone. KEF's Z-flex surround smooths the transition to the front panel while a sturdy die-cast aluminum chassis prevents resonance from being transferred to the cabinet. The same sophisticated vented tweeter that endows KEF Blade with such startlingly pure high-frequency response resides at the center of the midrange cone. Aided by a large neodymium magnet and a computer-optimized dome structure so stiff that it pistonically operates over its entire working range, the upper registers are articulated with staggering precision. Capitalizing on Uni-Q's point-source characteristics, KEF's ‘tangerine' waveguide helps to disperse the higher frequencies evenly across a wider angle to flood the room with an intricate and refreshingly natural soundfield. Operating together as a single integrated voice, the array as a whole delivers a sweet, accurate sound.

Uncompressed Bass, Stellar Dynamics
R500's bass driver is equally impressive. The combination of a massive vented magnet assembly and a large, lightweight aluminum voice coil driving a light, stiff hybrid cone assures clean, deep, and uncompressed bass output with superb dynamics and power handling, plus fast and clean midrange response. Inside the cabinets, every component confirms KEF's technological prowess. Computer-designed crossovers allow the level of each driver to be fine-tuned for a smoother, flatter response. Constrained-layer damping panels prevent cabinet vibration from muddying the midrange and bass. Even the airflow through the reflex ports is managed using computational fluid dynamics to optimize acoustic integrity.

A Ballet of Precision and Simplicity
R Series is designed from the ground up. The speaker enclosure's geometry and bracing optimizes vibrational behavior, reducing secondary radiation from cabinet walls for cleaner sound. Damping panels further minimize cabinet resonance and coloration. In addition to magnetic grilles, adjustable die-cast aluminum feet support steel spikes that have integrated locking knobs for easy height adjustment. Nickel-plated bi-wire connectors with terminal-linking control allow all standard connection methods and provide easy, reliable connection. The reflex-port geometry is tuned to minimize turbulence at high levels, reducing port noise and low-frequency compression.

Design: Three-way bass reflex
Drive Units:
   HF: 25mm (1in.) vented aluminum dome
   MF: 125mm (5in.) aluminum
   LF: 2 x 130mm (5.25in.) aluminum
Frequency Range: 39Hz-45kHz (-6dB)
Frequency Response: 46Hz-28kHz (±3dB)
Crossover Frequencies: 500Hz, 2.8kHz
Maximum Output: 111dB
Amplifier requirements: 25-150 W
Sensitivity: 88dB (2.83V/1m)
Harmonic distortion: <0.4% 120Hz-20kHz (90dB, 1m)
Nominal Impedance: 8 Ohms (min.3.2 Ohms)
Dimensions: 40" x 7.1" x 12"
Weight: 48 lbs.

User Manual (PDF, 7.3 MB)

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