central speaker / aluminium



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KEF REFERENCE 4c combines breath-taking sonic accuracy with spatial precision. For movie buffs looking for total immersion, it's the perfect centre.
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.
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