SICA 12 S 4 PL
Subwoofer
12″ / 321 mm
Nominal diameter
40 Hz
Resonance
0.25
Q factor
93 dB
Sensitivity
± 7.5 mm
Linear excursion
2000 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
93.0
dB
Frequency response
40 - 2000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
40.4
Hz
Mechanical quality factor
QMS
4.50
Electrical quality factor
QES
0.26
Total quality factor
QTS
0.25
Large signal parameters
Maximum linear excursion
xmax
7.5
mm
Air volume displaced at xmax
VD
398
cm³
Power handling
P
1000
W
Program power
Pmax
2000
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.2
Ω
Inductance (1kHz)
LE
1.15
mH
VC Diameter
100
mm
Winding height
HVC
12
mm
Winding material
Copper
Former material
Glass Fiber
Magnet
Flux density
B
1.21
T
Force factor
Bl
23.5
N/A
Motor constant
Bl/√RE
10.3
N/√W
Weight
0.536
kg
Material
Neodymium
Diaphragm
Effective diameter
260
mm
Effective area
SD
531
cm²
Moving mass
MMS
109
g
Moving mass (without air load)
MMD
100.1
g
Material
Paper
Suspensions
Stiffness
KMS
7.04
N/mm
Compliance
CMS
142
µm/N
Equivalent volume to the compliance
VAS
57
L
Mechanical resistance
RMS
6.15
N·s/m
Surround material
Treated Cloth
Dimensions
Nominal diameter
12
″
321
mm
Overall diameter
320
mm
Baffle cutout diameter
284
mm
Overall depth
155
mm
Volume occupied by the driver (estimated)
3.0
L
Net weight
6.6
kg
Frame material
Aluminium Die-Cast
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SD
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SD
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