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900x900_the_reference_4_rosewood

KEF - SP3864DA Rosewood

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Key Features

• Four 6.5″ Aluminium Uni-Q Bass driver

• 5″ Aluminium Midrange

• 1″ Vented Aluminium dome Tweeter

• 8 ohm (min. 3.2 Ohms) impedance

• 50-400W Amplifier requirement

• 48 Hz – 35k Hz Frequency response

$12,995.00

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REFERENCE 4c

As the main source of dialogue and vocals, the centre channel is critical to your enjoyment of what’s on screen. With KEF’s superlative new 125mm (5 inch) MF/HF Uni-Q driver array between four 165mm (6.5 inch) bass drivers, the REFERENCE 4c reproduces every last detail exactly as the director or the artist intended – spatially precise, stunningly clear and with a dynamic range that takes rapid transitions in its stride. For movie buffs looking for total immersion, it’s the perfect centre.

 

THE REFERENCE

The standard by which others are judged, and to which they aspire. The perfect reproduction of recorded sound is what KEF’s legendary THE REFERENCE Series has always stood for. And after 40 years of continuous development, THE REFERENCE has earned its name as the yardstick of high-end acoustic engineering.

If you’re a perfectionist when it comes to enjoying movies or music, it’s the one name that towers above the rest. THE REFERENCE. It speaks for itself.

 

Specifications:

Design Three-way bass reflex
DRIVE UNITS Uni-Q driver array:
HF: 25mm (1in.) vented aluminium dome
MF: 125mm (5in.) aluminium
Bass units:
LF: 4 x165mm (6.5in.) aluminium
FREQUENCY RANGE  Typical in room bass response: 33Hz (-6dB)
Free Field – Short port: 43Hz – 45kHz (-6dB)
Free Field – Long port: 40Hz – 45kHz (-6dB)
FREQUENCY RESPONSE 48Hz – 35kHz (±3dB)
CROSSOVER FREQUENCIES 350Hz, 2.8kHz
MAXIMUM OUTPUT 116dB (peak sound pressure level at 1m with pink noise)
AMPLIFIER CLASS 50-400 W
SENSITIVITY 90dB (2.83V/1m)
HARMONIC DISTORTION 2nd & 3rd harmonics (90dB, 1m)
<0.5% 40Hz – 100kHz
<0.2% 200Hz – 10kHz
IMPEDANCE 8 Ohms (min.3.2 Ohms)
DIMENSIONS H x W x D with grille, terminal & plinth : 205 x 1090 x 470 mm (8.1 x 42.9 x 18.5 in.)
WEIGHT 45.2kg (99.6lbs)
UNIT MEASUREMENT Piece

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