REFERENCE 1 Bookshelf Speaker KEF

Three-way standmounter

Smart use of innovative KEF technology means that with Reference 1 you don’t need a big cabinet to enjoy expansive, high-performance sound.

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SOUND REFERENCE 1

Reference 1 pairs KEF’s latest 125mm (5 inch) MF/HF Uni-Q driver array with the sensational new 165mm (6.5 inch) alloy cone bass driver to create a compellingly realistic, large scale sound stage. Uni-Q’s inherently wide, even dispersion also makes it the perfect rear channel speaker in a serious home theatre system.

SPECIFICATIONS The Details

WEIGHT

18.2kg (40.1lbs)

H x W x D with grille and terminal

440 x 205 x 430 mm (17.3 x 8.1 x 16.9 in. )

DESIGN

Three-way bass reflex

Unit measurement

Pair

FREQUENCY RANGE

Typical in room bass response: 30Hz (-6dB)
Free Field – Short port: 40Hz – 45kHz (-6dB)
Free Field – Long port: 37Hz – 45kHz (-6dB)

TYPICAL IN-ROOM BASS RESPONSE

26Hz (-6dB)

FREQUENCY RESPONSE

45Hz- 35kHz (±3dB)

HARMONIC DISTORTION

2nd & 3rd harmonics (90dB, 1m)
<0.5% 40Hz - 100kHz
<0.2% 200Hz - 10kHz

MAXIMUM OUTPUT

111 dB (peak sound pressure level at 1m with pink noise)

AMPLIFIER class

50-200W

Sensitivity

85dB (2.83V/1m)

NOMINAL IMPEDANCE

8Ohms (min.3.2Ohms)

DRIVE UNITS

Uni-Q driver array:
HF: 25mm (1in.) vented aluminium dome
MF: 125mm (5in.) aluminium
Bass units
LF: 1 x165mm (6.5in.) aluminium

CROSSOVER FREQUENCIES

350Hz, 2.8kHz

Details