Boxe de podea KEF Reference 3 Meta - ex demo

Design

Three-way bass reflex

Drive units
Uni-Q driver array:
HF: 25 mm (1 in.) aluminium dome with MAT
MF: 125 mm (5 in.) aluminium cone

Bass units:
LF: 2 x 165 mm (6.5 in.) aluminium cone
Frequency range free field (-6dB)
Short port: 38Hz - 45kHz
Long port: 35Hz - 45kHz
Frequency range typical in room bass response (-6dB)
28Hz
Frequency response (±3dB)
43Hz – 35kHz
Crossover frequency
450 Hz, 2.1 kHz
Amplifier requirements
50 - 300W
Sensitivity (2.83V/1m) 
86dB
Harmonic distortion 2nd & 3rd harmonics (90dB, 1m)
<0.5% 40Hz – 100kHz
<0.2% 200Hz – 2kHz
<0.1% 2kHz - 20kHz
Maximum output (peak sound pressure level at 1m with pink noise)
113.5dB
Impedance
4 Ω (min. 3.2 Ω)
Weight
51.3 kg (113.1 lbs.)
Dimensions (H x W x D)(with grille and terminal)
1155 x 205 x 462 mm(45.5 x 8.1 x 18.2 in.)
Dimensions (H x W x D)(with grille, terminal & plinth)
1207 x 323 x 467 mm(47.5 x 12.7 x 18.4 in.)

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