Bowers & Wilkins XT4 Manuel D'utilisation page 25

Description
Drive units
Frequency range
Frequency response
Dispersion
Sensitivity
Harmonic Distortion
Nominal impedance
Crossover frequencies
Recommended amplifier power
Max. recommended cable
impedance
Dimensions
Net weight
24
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XT4
3-way vented-box system
1x ø25mm (1 in) aluminium dome high-frequency
1x ø130mm (5 in) woven Kevlar® cone midrange
2x ø130mm (5 in) Paper/Kevlar® cone bass
-6dB at 34Hz and 50KHz
40Hz - 22kHz ±3dB on reference axis
Within 2dB of reference response
Horizontal: over 60º arc
vertical: over 10º arc
86dB spl (2.83V, 1m)
2nd and 3rd harmonics (90dB, 1m)
<1% 120Hz - 20kHz
8Ω(minimum 3.1Ω)
360Hz, 3.5kHz
50W - 150W into 8Ω on unclipped programme
0.1Ω
Height: 1138mm (44.8 in) (not including feet)
Width: 152mm (6 in)
Depth: 200mm (7.9 in)
22.5kg (49 lb)