SICA 4 E 1 CS
Woofer
4″ / 102 mm
Nominal diameter
118 Hz
Resonance
0.39
Q factor
88 dB
Sensitivity
± 2.2 mm
Linear excursion
140 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
88.0
dB
Frequency response
120 - 10000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
118
Hz
Mechanical quality factor
QMS
1.85
Electrical quality factor
QES
0.49
Total quality factor
QTS
0.39
Large signal parameters
Maximum linear excursion
xmax
2.2
mm
Air volume displaced at xmax
VD
9.7
cm³
Power handling
P
70
W
Program power
Pmax
140
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.6
Ω
Inductance (1kHz)
LE
0.14
mH
VC Diameter
25
mm
Winding height
HVC
6
mm
Winding material
Aluminium
Former material
Aluminium
Magnet
Flux density
B
1.1
T
Force factor
Bl
5.76
N/A
Motor constant
Bl/√RE
2.43
N/√W
Weight
0.38
kg
Material
Ferrite
Diaphragm
Effective diameter
75
mm
Effective area
SD
44
cm²
Moving mass
MMS
3.9
g
Moving mass (without air load)
MMD
3.7
g
Material
Paper
Suspensions
Stiffness
KMS
2.15
N/mm
Compliance
CMS
466
µm/N
Equivalent volume to the compliance
VAS
1.3
L
Mechanical resistance
RMS
1.56
N·s/m
Surround material
Treated Cloth
Dimensions
Nominal diameter
4
″
102 x 104
mm
Overall size
104 x 104
mm
Baffle cutout diameter
90
mm
Overall depth
58
mm
Volume occupied by the driver (estimated)
0.23
L
Net weight
1.0
kg
Frame material
Pressed sheet steel
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SpeakerbenchSimilar woofers to SICA 4 E 1 CS
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4″Woofer
fS
120 Hz
SD
44 cm²
120 - 10000 Hz
QTS
0.36
xmax
2.5 mm
SPL1W
89 dB
Bl/√RE
2.63
Pmax
140 W
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3″Full-range
fS
110 Hz
SD
33 cm²
100 - 20000 Hz
QTS
0.36
xmax
1.7 mm
SPL1W
88 dB
Bl/√RE
2.04
Pmax
40 W
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3″Full-range
fS
100 Hz
SD
32 cm²
100 - 20000 Hz
QTS
0.34
xmax
1.3 mm
SPL1W
88 dB
Bl/√RE
1.87
Pmax
30 W