SICA 12 PFS 3
Subwoofer
12″ / 321 mm
Nominal diameter
43 Hz
Resonance
0.47
Q factor
91 dB
Sensitivity
± 7 mm
Linear excursion
1000 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
91.1
dB
Frequency response
40 - 2000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
43.0
Hz
Mechanical quality factor
QMS
5.35
Electrical quality factor
QES
0.51
Total quality factor
QTS
0.47
Large signal parameters
Maximum linear excursion
xmax
7.0
mm
Air volume displaced at xmax
VD
372
cm³
Power handling
P
500
W
Program power
Pmax
1000
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.1
Ω
Inductance (1kHz)
LE
1.07
mH
VC Diameter
75
mm
Winding height
HVC
10
mm
Winding material
Copper
Former material
Glass Fiber
Magnet
Flux density
B
1.04
T
Force factor
Bl
15.89
N/A
Motor constant
Bl/√RE
7.04
N/√W
Weight
1.79
kg
Material
Ferrite
Diaphragm
Effective diameter
260
mm
Effective area
SD
531
cm²
Moving mass
MMS
93.7
g
Moving mass (without air load)
MMD
84.8
g
Material
Paper
Suspensions
Stiffness
KMS
6.85
N/mm
Compliance
CMS
146
µm/N
Equivalent volume to the compliance
VAS
58.5
L
Mechanical resistance
RMS
4.73
N·s/m
Surround material
Treated Cloth
Dimensions
Nominal diameter
12
″
321
mm
Overall diameter
320
mm
Baffle cutout diameter
284
mm
Overall depth
141
mm
Volume occupied by the driver (estimated)
2.9
L
Net weight
6.7
kg
Frame material
Aluminium Die-Cast
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fS
41 Hz
SD
531 cm²
40 - 500 Hz
QTS
0.41
xmax
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SPL1W
91 dB
Bl/√RE
7.36
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800 W
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fS
40 Hz
SD
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40 - 900 Hz
QTS
0.46
xmax
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SPL1W
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Bl/√RE
7.48
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fS
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SD
355 cm²
31 - 4900 Hz
QTS
0.39
xmax
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SPL1W
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Bl/√RE
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