REFERENCE 1 Bookshelf Speaker
KEF REFERENCE 1's innovative technology means that you don't need a big cabinet to enjoy expansive, premium quality sound.
DESIGN: Three-way Bass Reflex
DRIVE UNITS: Uni-Q driver array: HF: 25mm (1in.) vented aluminium dome, MF: 125mm (5in.) aluminium
Bass units: LF: 1 x165mm (6.5in.) aluminium
FREQUENCY RANGE: Typical in room bass response: 30Hz (-6dB), Free Field - Short port: 40Hz - 45kHz (-6dB), Free Field - Long port: 37Hz - 45kHz (-6dB)
FREQUENCY RESPONSE: 45Hz- 35kHz (±3dB)
CROSSOVER FREQUENCIES: 350Hz, 2.8kHz
MAXIMUM OUTPUT: 111 dB (peak sound pressure level at 1m with pink noise)
AMPLIFIER CLASS: 50-200W
SENSITIVITY: 85dB (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 HxWxD with grille and terminal: 440x205x430 mm (17.3x8.1x16.9 in)
WEIGHT: 18.2kg (40.1lbs)