15″ / 397 mm
Nominal diameter
27 Hz
Resonance
0.45
Q factor
87 dB
Sensitivity
± 21 mm
Linear excursion
3200 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
86.8
dB
Thiele & Small parameters
Resonance frequency (free air)
fS
26.6
Hz
Mechanical quality factor
QMS
4.88
Electrical quality factor
QES
0.48
Total quality factor
QTS
0.45
Large signal parameters
Maximum linear excursion
xmax
21.0
mm
Air volume displaced at xmax
VD
1775
cm³
Power handling
P
1600
W
Program power
Pmax
3200
W
Voice Coil
Nominal impedance
Z
2 x 2
Ω
DC resistance (in series)
RE
2.8
Ω
Inductance (1kHz, in series, estimated)
LE
1.68
mH
VC Diameter
81
mm
Winding material
round copper
Magnet
Force factor (in series)
Bl
21.7
N/A
Motor constant
Bl/√RE
13.0
N/√W
Diameter
190
mm
Height
50
mm
Diaphragm
Effective diameter
328
mm
Effective area
SD
845
cm²
Moving mass
MMS
476
g
Moving mass (without air load)
MMD
458.4
g
Material
Paper with glass fiber
Suspensions
Stiffness
KMS
15.87
N/mm
Compliance
CMS
63
µm/N
Equivalent volume to the compliance
VAS
64.3
L
Mechanical resistance
RMS
16.3
N·s/m
Dimensions
Nominal diameter
15
″
397
mm
Overall diameter
397
mm
Baffle cutout diameter
370
mm
Mounting depth
200
mm
Volume occupied by the driver
5.0
L
Net weight
13.6
kg
Frame material
Aluminium
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Fi Car Audio SP415 v2.1 D22 x 2 Ω
15″Subwoofer
fS
28 Hz
SD
810 cm²
QTS
0.48
xmax
33.0 mm
SPL1W
87 dB
Bl/√RE
12
Pmax
7000 W
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Fi Car Audio BTL4 15 D22 x 2 Ω
15″Subwoofer
fS
27 Hz
SD
810 cm²
QTS
0.46
xmax
33.0 mm
SPL1W
87 dB
Bl/√RE
12
Pmax
7000 W