15″ / 380 mm
Nominal diameter
41 Hz
Resonance
0.27
Q factor
97 dB
Sensitivity
± 6.5 mm
Linear excursion
700 W
Program Power
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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
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Export this driver to a simulation software:
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QSpeakers
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MfbLabs
SpeakerbenchSimilar subwoofers to Eighteen Sound 15W700
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15″Coaxial
fS
43 Hz
SD
855 cm²
40 - 18000 Hz
QTS
0.28
xmax
6.0 mm
SPL1W
98 dB
Bl/√RE
8.71
Pmax
800 W
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15″Low frequency
fS
42 Hz
SD
855 cm²
40 - 3000 Hz
QTS
0.28
xmax
4.0 mm
SPL1W
97 dB
Bl/√RE
8.8
Pmax
800 W
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15″Woofer
fS
41 Hz
SD
866 cm²
40 - 400 Hz
QTS
0.24
xmax
4.7 mm
SPL1W
98 dB
Bl/√RE
9.47
Pmax
700 W