SICA 12 C 2 CP

Coaxial

12″ / 320 mm
Nominal diameter
58 Hz
Resonance
0.45
Q factor
96 dB
Sensitivity
± 4.5 mm
Linear excursion
400 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
Discard
Apply
Sensitivity (1w, 1m, infinite baffle)
SPL1W
96.1
dB
Frequency response
60 - 3500
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
58.4
Hz
Mechanical quality factor
QMS
5.60
Electrical quality factor
QES
0.49
Total quality factor
QTS
0.45

Large signal parameters

Maximum linear excursion
xmax
4.5
mm
Air volume displaced at xmax
VD
239
cm³
Power handling
P
200
W
Program power
Pmax
400
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
6.2
Ω
Inductance (1kHz)
LE
0.83
mH
VC Diameter
50
mm
Winding height
HVC
8
mm
Winding material
Copper
Former material
Kapton

Magnet

Flux density
B
1.08
T
Force factor
Bl
13.7
N/A
Motor constant
Bl/√RE
5.5
N/√W
Weight
1.1
kg
Material
Ferrite

Diaphragm

Effective diameter
260
mm
Effective area
SD
531
cm²
Moving mass
MMS
40
g
Moving mass (without air load)
MMD
31.1
g
Material
Paper

Suspensions

Stiffness
KMS
5.38
N/mm
Compliance
CMS
186
µm/N
Equivalent volume to the compliance
VAS
74.3
L
Mechanical resistance
RMS
2.62
N·s/m
Surround material
Treated Cloth

Dimensions

Nominal diameter
12
320
mm
Overall diameter
320
mm
Baffle cutout diameter
284
mm
Overall depth
130
mm
Volume occupied by the driver (estimated)
1.9
L
Net weight
3.8
kg
Frame material
Aluminium Die-Cast
SICA 12 C 2 CP SPL & Impedance
SICA 12 C 2 CP Dimensions

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