8″ / 210 mm
Nominal diameter
74 Hz
Resonance
0.28
Q factor
95 dB
Sensitivity
± 5 mm
Linear excursion
600 W
Program Power
Driver
Port
Combined
Frequency response
Hz
Impedance
Ω
Impedance Phase
°
Excursion
mm
Velocity
m/s
SPL
dB
Acoustical Phase
°
Group Delay
ms
Transient response
ms
Sensitivity (1w, 1m, infinite baffle)
SPL1W
94.5
dB
Frequency response
75 - 20000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
74.0
Hz
Mechanical quality factor
QMS
2.63
Electrical quality factor
QES
0.32
Total quality factor
QTS
0.28
Large signal parameters
Maximum linear excursion
xmax
5.0
mm
Air volume displaced at xmax
VD
107
cm³
Power handling
P
300
W
Program power
Pmax
600
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.6
Ω
Inductance (1kHz)
LE
0.6
mH
VC Diameter
65
mm
Winding height
HVC
8
mm
Winding material
Aluminium
Former material
Glass Fiber
Magnet
Force factor
Bl
12.34
N/A
Motor constant
Bl/√RE
5.21
N/√W
Weight
0.364
kg
Diaphragm
Effective diameter
165
mm
Effective area
SD
214
cm²
Moving mass
MMS
18.5
g
Moving mass (without air load)
MMD
16.2
g
Suspensions
Stiffness
KMS
3.98
N/mm
Compliance
CMS
251
µm/N
Equivalent volume to the compliance
VAS
16.2
L
Mechanical resistance
RMS
3.27
N·s/m
Surround material
Treated Cloth
Dimensions
Nominal diameter
8
″
210
mm
Overall diameter
210
mm
Baffle cutout diameter
184
mm
Overall depth
112
mm
Volume occupied by the driver (estimated)
0.95
L
Net weight
2.3
kg
Frame material
Aluminium Die-Cast
Similar speaker drivers to SICA 8 Cx 2,5 PL
8″Woofer
fS
73 Hz
SD
214 cm²
70 - 4000 Hz
QTS
0.28
xmax
4.0 mm
SPL1W
95 dB
Bl/√RE
5.55
Pmax
600 W
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
8″Coaxial
fS
70 Hz
SD
223 cm²
70 - 20000 Hz
QTS
0.29
xmax
6.2 mm
SPL1W
94 dB
Bl/√RE
5.88
Pmax
500 W