15″ / 397 mm
Nominal diameter
26 Hz
Resonance
0.76
Q factor
87 dB
Sensitivity
± 34 mm
Linear excursion
1200 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
86.7
dB
Thiele & Small parameters
Resonance frequency (free air)
fS
26.1
Hz
Mechanical quality factor
QMS
8.73
Electrical quality factor
QES
0.83
Total quality factor
QTS
0.76
Large signal parameters
Maximum linear excursion
xmax
34.0
mm
Air volume displaced at xmax
VD
2754
cm³
Power handling
P
600
W
Program power
Pmax
1200
W
Voice Coil
Nominal impedance
Z
2
Ω
DC resistance
RE
1.8
Ω
Inductance (1kHz, estimated)
LE
0.81
mH
Magnet
Force factor
Bl
10.6
N/A
Motor constant
Bl/√RE
7.9
N/√W
Diaphragm
Effective diameter
321
mm
Effective area
SD
810
cm²
Moving mass
MMS
298
g
Moving mass (without air load)
MMD
281.2
g
Suspensions
Stiffness
KMS
7.87
N/mm
Compliance
CMS
127
µm/N
Equivalent volume to the compliance
VAS
115
L
Mechanical resistance
RMS
5.6
N·s/m
Dimensions
Nominal diameter
15
″
397
mm
Overall diameter
397
mm
Baffle cutout diameter
359
mm
Mounting depth
203
mm
Volume occupied by the driver
4.81
L
Export this driver to a simulation software:
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SpeakerbenchSimilar subwoofers to Fi Car Audio IB315 v2 S2
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15″Subwoofer
fS
26 Hz
SD
810 cm²
QTS
0.76
xmax
34.0 mm
SPL1W
86 dB
Bl/√RE
7.91
Pmax
1200 W
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Dayton Audio UM18-222 x 2 Ω
18″Subwoofer
fS
26 Hz
SD
1219 cm²
19 - 500 Hz
QTS
0.70
xmax
22.0 mm
SPL1W
87 dB
Bl/√RE
10
Pmax
2000 W
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12″Subwoofer
fS
25 Hz
SD
516 cm²
20 - 125 Hz
QTS
0.81
xmax
11.7 mm
SPL1W
85 dB
Bl/√RE
5.43
Pmax
600 W