Kartesian Wib120_vHE
Full-range
4.5″ / 120 mm
Nominal diameter
68 Hz
Resonance
0.56
Q factor
85 dB
Sensitivity
± 4 mm
Linear excursion
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
84.6
dB
Frequency response
60 - 20000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
68.0
Hz
Mechanical quality factor
QMS
2.25
Electrical quality factor
QES
0.74
Total quality factor
QTS
0.56
Large signal parameters
Maximum linear excursion
xmax
4.0
mm
Air volume displaced at xmax
VD
21
cm³
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.6
Ω
Inductance (1kHz)
LE
0.09
mH
Magnet
Force factor
Bl
3.98
N/A
Motor constant
Bl/√RE
1.68
N/√W
Diameter
90
mm
Diaphragm
Effective diameter
82
mm
Effective area
SD
53
cm²
Moving mass
MMS
4.9
g
Moving mass (without air load)
MMD
4.6
g
Suspensions
Stiffness
KMS
0.89
N/mm
Compliance
CMS
1118
µm/N
Equivalent volume to the compliance
VAS
4.4
L
Mechanical resistance
RMS
0.93
N·s/m
Dimensions
Nominal diameter
4.5
″
120
mm
Overall diameter
120
mm
Baffle cutout diameter
98
mm
Overall depth
68
mm
Flange thickness
5
mm
Mounting depth
63
mm
Volume occupied by the driver (estimated)
0.25
L
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