SICA 15 PFS 3
Subwoofer
15″ / 389 mm
Nominal diameter
39 Hz
Resonance
0.45
Q factor
93 dB
Sensitivity
± 7 mm
Linear excursion
1000 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
93.1
dB
Frequency response
35 - 2000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
39.0
Hz
Mechanical quality factor
QMS
3.24
Electrical quality factor
QES
0.52
Total quality factor
QTS
0.45
Large signal parameters
Maximum linear excursion
xmax
7.0
mm
Air volume displaced at xmax
VD
599
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
1.36
mH
VC Diameter
75
mm
Winding height
HVC
10
mm
Winding material
Copper
Former material
Glass Fiber
Magnet
Flux density
B
1.08
T
Force factor
Bl
17.5
N/A
Motor constant
Bl/√RE
7.75
N/√W
Weight
1.79
kg
Material
Ferrite
Diaphragm
Effective diameter
330
mm
Effective area
SD
855
cm²
Moving mass
MMS
127.7
g
Moving mass (without air load)
MMD
110.3
g
Material
Paper
Suspensions
Stiffness
KMS
7.69
N/mm
Compliance
CMS
130
µm/N
Equivalent volume to the compliance
VAS
136
L
Mechanical resistance
RMS
9.66
N·s/m
Surround material
Treated Cloth
Dimensions
Nominal diameter
15
″
389
mm
Overall diameter
388
mm
Baffle cutout diameter
355
mm
Overall depth
163
mm
Volume occupied by the driver (estimated)
3.9
L
Net weight
7.7
kg
Frame material
Aluminium Die-Cast
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fS
39 Hz
SD
1134 cm²
30 - 2500 Hz
QTS
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xmax
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SPL1W
94 dB
Bl/√RE
11
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15″Low frequency
fS
38 Hz
SD
855 cm²
35 - 1000 Hz
QTS
0.43
xmax
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SPL1W
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Bl/√RE
8.96
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18″Low frequency
fS
37 Hz
SD
1134 cm²
30 - 2500 Hz
QTS
0.40
xmax
12.5 mm
SPL1W
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Bl/√RE
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