12″ / 318 mm
Nominal diameter
28 Hz
Resonance
0.42
Q factor
83 dB
Sensitivity
± 33 mm
Linear excursion
7000 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
83.1
dB
Thiele & Small parameters
Resonance frequency (free air)
fS
27.8
Hz
Mechanical quality factor
QMS
6.16
Electrical quality factor
QES
0.45
Total quality factor
QTS
0.42
Large signal parameters
Maximum linear excursion
xmax
33.0
mm
Air volume displaced at xmax
VD
1584
cm³
Power handling
P
3500
W
Program power
Pmax
7000
W
Voice Coil
Nominal impedance
Z
2 x 2
Ω
DC resistance (in series)
RE
2.8
Ω
Inductance (1kHz, in series, estimated)
LE
1.48
mH
Magnet
Force factor (in series)
Bl
20.2
N/A
Motor constant
Bl/√RE
12.1
N/√W
Diaphragm
Effective diameter
247
mm
Effective area
SD
480
cm²
Moving mass
MMS
388
g
Moving mass (without air load)
MMD
380.1
g
Suspensions
Stiffness
KMS
11.63
N/mm
Compliance
CMS
86
µm/N
Equivalent volume to the compliance
VAS
27.1
L
Mechanical resistance
RMS
11.0
N·s/m
Dimensions
Nominal diameter
12
″
318
mm
Overall diameter
318
mm
Baffle cutout diameter
283
mm
Mounting depth
184
mm
Volume occupied by the driver
2.27
L
Export this driver to a simulation software:
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SpeakerbenchSimilar subwoofers to Fi Car Audio BTL4 12 D2
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Fi Car Audio BTL4 12 D12 x 1 Ω
12″Subwoofer
fS
28 Hz
SD
480 cm²
QTS
0.42
xmax
33.0 mm
SPL1W
83 dB
Bl/√RE
12
Pmax
7000 W
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Fi Car Audio SP412 v2.1 D12 x 1 Ω
12″Subwoofer
fS
28 Hz
SD
480 cm²
QTS
0.44
xmax
33.0 mm
SPL1W
83 dB
Bl/√RE
12
Pmax
7000 W
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Fi Car Audio SP412 v2.1 D22 x 2 Ω
12″Subwoofer
fS
28 Hz
SD
480 cm²
QTS
0.44
xmax
33.0 mm
SPL1W
83 dB
Bl/√RE
12
Pmax
7000 W