12″ / 318 mm
Nominal diameter
34 Hz
Resonance
0.31
Q factor
87 dB
Sensitivity
± 34 mm
Linear excursion
5000 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
86.6
dB
Thiele & Small parameters
Resonance frequency (free air)
fS
33.7
Hz
Mechanical quality factor
QMS
5.97
Electrical quality factor
QES
0.33
Total quality factor
QTS
0.31
Large signal parameters
Maximum linear excursion
xmax
34.0
mm
Air volume displaced at xmax
VD
1632
cm³
Power handling
P
2500
W
Program power
Pmax
5000
W
Voice Coil
Nominal impedance
Z
2 x 2
Ω
DC resistance (in series)
RE
3.6
Ω
Inductance (1kHz, in series, estimated)
LE
1.97
mH
Magnet
Force factor (in series)
Bl
25.7
N/A
Motor constant
Bl/√RE
13.5
N/√W
Diaphragm
Effective diameter
247
mm
Effective area
SD
480
cm²
Moving mass
MMS
287
g
Moving mass (without air load)
MMD
279.1
g
Suspensions
Stiffness
KMS
12.84
N/mm
Compliance
CMS
78
µm/N
Equivalent volume to the compliance
VAS
25.1
L
Mechanical resistance
RMS
10.18
N·s/m
Dimensions
Nominal diameter
12
″
318
mm
Overall diameter
318
mm
Baffle cutout diameter
283
mm
Mounting depth
254
mm
Volume occupied by the driver
5.38
L
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SpeakerbenchSimilar subwoofers to Fi Car Audio SP3 12 D2
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Fi Car Audio BTL3 12 D22 x 2 Ω
12″Subwoofer
fS
34 Hz
SD
480 cm²
QTS
0.26
xmax
34.0 mm
SPL1W
87 dB
Bl/√RE
15
Pmax
5000 W
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Fi Car Audio SP3 12 D12 x 1 Ω
12″Subwoofer
fS
34 Hz
SD
480 cm²
QTS
0.31
xmax
34.0 mm
SPL1W
87 dB
Bl/√RE
14
Pmax
5000 W