SICA 4 L 1 SL
Woofer
4″ / 102 mm
Nominal diameter
108 Hz
Resonance
0.63
Q factor
85 dB
Sensitivity
± 2.4 mm
Linear excursion
120 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
84.7
dB
Frequency response
110 - 10000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
108
Hz
Mechanical quality factor
QMS
3.15
Electrical quality factor
QES
0.78
Total quality factor
QTS
0.63
Large signal parameters
Maximum linear excursion
xmax
2.4
mm
Air volume displaced at xmax
VD
11
cm³
Power handling
P
60
W
Program power
Pmax
120
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
6.0
Ω
Inductance (1kHz)
LE
0.37
mH
VC Diameter
25
mm
Winding height
HVC
5
mm
Winding material
Copper
Former material
Epotex
Magnet
Flux density
B
0.99
T
Force factor
Bl
5.1
N/A
Motor constant
Bl/√RE
2.08
N/√W
Weight
0.042
kg
Material
Neodymium
Diaphragm
Effective diameter
75
mm
Effective area
SD
44
cm²
Moving mass
MMS
5
g
Moving mass (without air load)
MMD
4.8
g
Material
Paper
Suspensions
Stiffness
KMS
2.32
N/mm
Compliance
CMS
432
µm/N
Equivalent volume to the compliance
VAS
1.2
L
Mechanical resistance
RMS
1.08
N·s/m
Surround material
Rubber
Dimensions
Nominal diameter
4
″
102
mm
Overall diameter
100
mm
Baffle cutout diameter
90
mm
Overall depth
47
mm
Volume occupied by the driver (estimated)
0.12
L
Net weight
0.2
kg
Frame material
Pressed sheet steel
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QSpeakers
SpeakerSim
MfbLabs
SpeakerbenchSimilar woofers to SICA 4 L 1 SL
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3″Full-range
fS
102 Hz
SD
30 cm²
100 - 16000 Hz
QTS
0.56
xmax
1.5 mm
SPL1W
85 dB
Bl/√RE
1.58
Pmax
30 W
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3.5″Full-range
fS
113 Hz
SD
38 cm²
98 - 18500 Hz
QTS
0.65
xmax
2.3 mm
SPL1W
85 dB
Bl/√RE
1.9
Pmax
70 W
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4″Woofer
fS
100 Hz
SD
57 cm²
100 - 4000 Hz
QTS
0.60
xmax
5.0 mm
SPL1W
85 dB
Bl/√RE
2.14
Pmax
50 W