SICA 12 L1 2,5 SL

Woofer

12″ / 318 mm
Nominal diameter
48 Hz
Resonance
0.36
Q factor
95 dB
Sensitivity
± 3.7 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
Discard
Apply
Sensitivity (1W, 1m, infinite baffle)
SPL1W
94.9
dB
Frequency response
50 - 3000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
47.5
Hz
Mechanical quality factor
QMS
7.50
Electrical quality factor
QES
0.38
Total quality factor
QTS
0.36

Large signal parameters

Maximum linear excursion
xmax
3.7
mm
Air volume displaced at xmax
VD
182
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
0.75
mH
VC Diameter
65
mm
Winding height
HVC
8
mm
Winding material
Copper
Former material
Kapton

Magnet

Flux density
B
1.15
T
Force factor
Bl
14.2
N/A
Motor constant
Bl/√RE
6.05
N/√W
Weight
0.22
kg
Material
Neodymium

Diaphragm

Effective diameter
250
mm
Effective area
SD
491
cm²
Moving mass
MMS
47
g
Moving mass (without air load)
MMD
38.9
g
Material
Paper

Suspensions

Stiffness
KMS
4.18
N/mm
Compliance
CMS
239
µm/N
Equivalent volume to the compliance
VAS
81.8
L
Mechanical resistance
RMS
1.87
N·s/m
Surround material
Treated Cloth

Dimensions

Nominal diameter
12
318
mm
Overall diameter
318
mm
Baffle cutout diameter
287
mm
Overall depth
130
mm
Volume occupied by the driver (estimated)
1.4
L
Net weight
2.3
kg
Frame material
Pressed Sheet Steel
SICA 12 L1 2,5 SL SPL & Impedance
SICA 12 L1 2,5 SL Dimensions

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fS
47 Hz
SD
531 cm²
45 - 3000 Hz
QTS
0.39
xmax
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SPL1W
94 dB
Bl/√RE
6.5
Pmax
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