SICA 8 Fe 2,5 CP
Woofer
8″ / 210 mm
Nominal diameter
73 Hz
Resonance
0.28
Q factor
95 dB
Sensitivity
± 4 mm
Linear excursion
600 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
94.6
dB
Frequency response
70 - 4000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
73.0
Hz
Mechanical quality factor
QMS
3.73
Electrical quality factor
QES
0.30
Total quality factor
QTS
0.28
Large signal parameters
Maximum linear excursion
xmax
4.0
mm
Air volume displaced at xmax
VD
86
cm³
Power handling
P
300
W
Program power
Pmax
600
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.5
Ω
Inductance (1kHz)
LE
0.5
mH
VC Diameter
65
mm
Winding height
HVC
8
mm
Winding material
Aluminium
Former material
Kapton
Magnet
Flux density
B
1.11
T
Force factor
Bl
13.01
N/A
Motor constant
Bl/√RE
5.55
N/√W
Weight
1.43
kg
Material
Ferrite
Diaphragm
Effective diameter
165
mm
Effective area
SD
214
cm²
Moving mass
MMS
19.8
g
Moving mass (without air load)
MMD
17.5
g
Material
Paper
Suspensions
Stiffness
KMS
4.17
N/mm
Compliance
CMS
240
µm/N
Equivalent volume to the compliance
VAS
15.6
L
Mechanical resistance
RMS
2.43
N·s/m
Surround material
Treated Cloth
Dimensions
Nominal diameter
8
″
210
mm
Overall diameter
210
mm
Baffle cutout diameter
184
mm
Overall depth
98
mm
Volume occupied by the driver (estimated)
1.3
L
Net weight
4.5
kg
Frame material
Aluminium Die-Cast
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SpeakerbenchSimilar woofers to SICA 8 Fe 2,5 CP
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8″Coaxial
fS
76 Hz
SD
217 cm²
75 - 20000 Hz
QTS
0.30
xmax
4.9 mm
SPL1W
94 dB
Bl/√RE
5.88
Pmax
500 W
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8″Coaxial
fS
74 Hz
SD
214 cm²
75 - 20000 Hz
QTS
0.28
xmax
5.0 mm
SPL1W
95 dB
Bl/√RE
5.21
Pmax
600 W
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8″Woofer
fS
77 Hz
SD
214 cm²
75 - 4000 Hz
QTS
0.30
xmax
3.5 mm
SPL1W
95 dB
Bl/√RE
5.47
Pmax
600 W