15″ / 380 mm
Nominal diameter
36 Hz
Resonance
0.22
Q factor
97 dB
Sensitivity
± 7.5 mm
Linear excursion
800 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
97.1
dB
Frequency response
40 - 4100
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
36.0
Hz
Mechanical quality factor
QMS
5.30
Electrical quality factor
QES
0.23
Total quality factor
QTS
0.22
Large signal parameters
Maximum linear excursion
xmax
7.5
mm
Air volume displaced at xmax
VD
638
cm³
Power handling
P
500
W
Program power
Pmax
800
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.5
Ω
Inductance (1kHz)
LE
1.61
mH
VC Diameter
75
mm
Winding material
Copper
Magnet
Force factor
Bl
23.8
N/A
Motor constant
Bl/√RE
10.1
N/√W
Material
Neodymium
Diaphragm
Effective diameter
329
mm
Effective area
SD
850
cm²
Moving mass
MMS
101
g
Moving mass (without air load)
MMD
83.7
g
Material
Weather protected
Suspensions
Stiffness
KMS
5.16
N/mm
Compliance
CMS
194
µm/N
Equivalent volume to the compliance
VAS
206
L
Mechanical resistance
RMS
4.31
N·s/m
Dimensions
Nominal diameter
15
″
380
mm
Overall diameter
387
mm
Baffle cutout diameter
353
mm
Overall depth
177
mm
Flange thickness
11
mm
Mounting depth
166
mm
Volume occupied by the driver (estimated)
3.0
L
Net weight
4.7
kg
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Export this driver to a simulation software:
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
SpeakerbenchSimilar subwoofers to Eighteen Sound 15ND930 8Ω
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15″Woofer
fS
37 Hz
SD
855 cm²
40 - 2000 Hz
QTS
0.22
xmax
7.0 mm
SPL1W
97 dB
Bl/√RE
9.77
Pmax
1000 W
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15″Subwoofer
fS
35 Hz
SD
850 cm²
40 - 4100 Hz
QTS
0.24
xmax
7.5 mm
SPL1W
97 dB
Bl/√RE
10
Pmax
800 W
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15″Low frequency
fS
38 Hz
SD
855 cm²
35 - 3000 Hz
QTS
0.25
xmax
8.5 mm
SPL1W
96 dB
Bl/√RE
9.89
Pmax
1200 W