Sunday 9 March 2014

Loudspeakers: KEF R300


March 3, 2014: 
This weekend I listened to my dream Monitors: The KEF R300. These are newly offered for approx. € 600 each. Such enormous beautiful full clear sound give this 3-way speakers with a new UniQ driver where the tweeter is mounted in middriver. Packed with innovations and technological advances, the new KEF R Series makes entertainment more affordable than ever to audiophile level. The new Uni-Q driver combined with new, highly potent bass drivers and many ingenious refinements give a rich, spacious and especially precise sound stage. This sound is strongly reminiscent of KEF's legendary Reference Series.

De new Uni-Q MF/HF driver is a masterpiece. The midrange response is amazingly fast and clear. Not only is there designed ​​use of a reinforced cone with a magnesium / aluminum alloy, but also KEF's Z-Flex technology, which allows a flat, yet smooth transition to the housing. The chassis is made ​​of cast aluminum, which results in a rigid construction and hence prevents the transfer of resonance. In the acoustic center of the mid-tone cone ensures a sophisticated vented tweeter, just like in the Blade, an incredibly direct high frequency response. Through the large neodymium magnet with computer-optimized dome structure, the upper registers working with unfailing accuracy. And the Uni-Q point source exploit characteristic more concerned KEF's tangerine waveguide for smooth and seamless spread of high frequencies in the room. 

The new bass driver is at least as impressive. The combination of a massive vented magnet and a great lightweight aluminum voice coil which a light, stiff, yet strong hybrid cone feeds, guarantees a clear, deep and uncompressed bass with superb dynamics and impressive power. The housing made of real wood finishes Rosewood or Walnut or in Piano Black finishing, underlines every tiniest particle under the superiority of KEF technology. The computer-designed crossovers fine tunes the level of each driver for a smoother response. Multilayer attenuation panels prevent vibrations of the housing interfere in the middle and lower range. Even the air flow through the bass reflex ports is perfectly balanced by computer optimization to achieve dynamic and acoustic perfection.


Update March 8, 2014: The KEF's at right hand are purchased (without the kitten).

  • brand: KEF serie R300 
  • colors: rosewood, walnut, black and white high gloss 
  • type speaker     : 3-way bass reflex 
  • bass reflex port : backside 
  • power handling : 110 Watt
  • nom. impedance: 8 Ohm 
  • sensitivity          : 88 dB (2.83V/1m) 
  • frequency [respons -6db]: 42 Hz-45 kHz [50 Hz-28 kHz] 
  • crossover frequency: 500 Hz / 2800 Hz 
  • tweeter    (in Uni-Q driver): 1x 25 mm vented aluminium dome 
  • midrange (in Uni-Q driver): 1x 125 mm aluminium 
  • bass driver                         : 1x 165 mm aluminium 
  • wxhxd:   210 x 385 x 345 mm 
  • weight:   13,2 kg pp 
  • guaranty: 5 years 

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