15″ / 380 mm
Nominal diameter
39 Hz
Resonance
0.26
Q factor
97 dB
Sensitivity
± 9 mm
Linear excursion
1400 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
96.7
dB
Frequency response
40 - 2400
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
39.0
Hz
Mechanical quality factor
QMS
7.21
Electrical quality factor
QES
0.27
Total quality factor
QTS
0.26
Large signal parameters
Maximum linear excursion
xmax
9.0
mm
Air volume displaced at xmax
VD
765
cm³
Power handling
P
1000
W
Program power
Pmax
1400
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
3.5
Ω
Inductance (1kHz)
LE
1.02
mH
VC Diameter
100
mm
Magnet
Force factor
Bl
22.0
N/A
Motor constant
Bl/√RE
11.8
N/√W
Diaphragm
Effective diameter
329
mm
Effective area
SD
850
cm²
Moving mass
MMS
125
g
Moving mass (without air load)
MMD
107.7
g
Suspensions
Stiffness
KMS
7.52
N/mm
Compliance
CMS
133
µm/N
Equivalent volume to the compliance
VAS
127
L
Mechanical resistance
RMS
4.25
N·s/m
Spider material
Double Silicon
Dimensions
Nominal diameter
15
″
380
mm
Overall diameter
387
mm
Baffle cutout diameter
353
mm
Overall depth
163
mm
Flange thickness
19
mm
Mounting depth
144
mm
Volume occupied by the driver (estimated)
5.4
L
Net weight
12.9
kg
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SpeakerbenchSimilar subwoofers to Eighteen Sound 15LW1401
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15″Woofer
fS
39 Hz
SD
855 cm²
40 - 2000 Hz
QTS
0.21
xmax
8.0 mm
SPL1W
97 dB
Bl/√RE
12
Pmax
1200 W
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15″Woofer
fS
40 Hz
SD
855 cm²
40 - 2000 Hz
QTS
0.21
xmax
7.0 mm
SPL1W
97 dB
Bl/√RE
12
Pmax
1000 W
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13.5″Woofer
fS
40 Hz
SD
707 cm²
40 - 3000 Hz
QTS
0.23
xmax
8.0 mm
SPL1W
96 dB
Bl/√RE
9.6
Pmax
1400 W