Eighteen Sound 15W700

Subwoofer

15″ / 380 mm
Nominal diameter
41 Hz
Resonance
0.27
Q factor
97 dB
Sensitivity
± 6.5 mm
Linear excursion
700 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
97.4
dB
Frequency response
38 - 5000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
41.0
Hz
Mechanical quality factor
QMS
4.03
Electrical quality factor
QES
0.29
Total quality factor
QTS
0.27

Large signal parameters

Maximum linear excursion
xmax
6.5
mm
Air volume displaced at xmax
VD
553
cm³
Power handling
P
450
W
Program power
Pmax
700
W

Voice Coil

Nominal impedance
Z
4
Ω
DC resistance
RE
2.8
Ω
Inductance (1kHz)
LE
0.54
mH
VC Diameter
75
mm

Magnet

Force factor
Bl
14.7
N/A
Motor constant
Bl/√RE
8.78
N/√W
Material
Ferrite

Diaphragm

Effective diameter
329
mm
Effective area
SD
850
cm²
Moving mass
MMS
86
g
Moving mass (without air load)
MMD
68.7
g
Material
Weather protected

Suspensions

Stiffness
KMS
5.71
N/mm
Compliance
CMS
175
µm/N
Equivalent volume to the compliance
VAS
180
L
Mechanical resistance
RMS
5.5
N·s/m

Dimensions

Nominal diameter
15
380
mm
Overall diameter
387
mm
Baffle cutout diameter
353
mm
Overall depth
168
mm
Flange thickness
19
mm
Mounting depth
149
mm
Volume occupied by the driver (estimated)
4.2
L
Net weight
8.5
kg
Eighteen Sound 15W700 Impedance
Eighteen Sound 15W700 SPL
Eighteen Sound 15W700 Dimensions

Export this driver to a simulation software:

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fS
43 Hz
SD
855 cm²
40 - 18000 Hz
QTS
0.28
xmax
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SPL1W
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Bl/√RE
8.71
Pmax
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SD
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