Fi Car Audio BL15v3.1 D2

2x1Ω
2x2Ω

Subwoofer

15″ / 397 mm
Nominal diameter
35 Hz
Resonance
0.34
Q factor
91 dB
Sensitivity
± 20 mm
Linear excursion
3500 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
91.2
dB

Thiele & Small parameters

Resonance frequency (free air)
fS
34.8
Hz
Mechanical quality factor
QMS
7.81
Electrical quality factor
QES
0.36
Total quality factor
QTS
0.34

Large signal parameters

Maximum linear excursion
xmax
20.0
mm
Air volume displaced at xmax
VD
1620
cm³
Power handling
P
1750
W
Program power
Pmax
3500
W

Voice Coil

Nominal impedance
Z
2 x 2
Ω
DC resistance (in series)
RE
2.8
Ω
Inductance (1kHz, in series, estimated)
LE
1.18
mH

Magnet

Force factor (in series)
Bl
21.9
N/A
Motor constant
Bl/√RE
13.1
N/√W

Diaphragm

Effective diameter
321
mm
Effective area
SD
810
cm²
Moving mass
MMS
269
g
Moving mass (without air load)
MMD
252.2
g

Suspensions

Stiffness
KMS
13.51
N/mm
Compliance
CMS
74
µm/N
Equivalent volume to the compliance
VAS
68.1
L
Mechanical resistance
RMS
7.53
N·s/m

Dimensions

Nominal diameter
15
397
mm
Overall diameter
397
mm
Baffle cutout diameter
359
mm
Mounting depth
210
mm
Volume occupied by the driver
5.95
L

Export this driver to a simulation software:

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PHL audio 4021 Subwoofer
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fS
35 Hz
SD
539 cm²
30 - 2000 Hz
QTS
0.35
xmax
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SPL1W
91 dB
Bl/√RE
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Pmax
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