15″ / 380 mm
Nominal diameter
42 Hz
Resonance
0.27
Q factor
96 dB
Sensitivity
± 9 mm
Linear excursion
1400 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
Sensitivity (1w, 1m, infinite baffle)
SPL1W
95.9
dB
Frequency response
40 - 2400
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
42.0
Hz
Mechanical quality factor
QMS
5.36
Electrical quality factor
QES
0.28
Total quality factor
QTS
0.27
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
8
Ω
DC resistance
RE
5.0
Ω
Inductance (1kHz)
LE
2.15
mH
VC Diameter
100
mm
Magnet
Force factor
Bl
24.2
N/A
Motor constant
Bl/√RE
10.8
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
Material
Weather protected
Suspensions
Stiffness
KMS
8.7
N/mm
Compliance
CMS
115
µm/N
Equivalent volume to the compliance
VAS
131
L
Mechanical resistance
RMS
6.15
N·s/m
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
Similar subwoofers to Eighteen Sound 15LW1401 8Ω
15″Subwoofer
fS
42 Hz
SD
935 cm²
40 - 1000 Hz
QTS
0.31
xmax
10.3 mm
SPL1W
95 dB
Bl/√RE
12
Pmax
2000 W
15″Subwoofer
fS
39 Hz
SD
850 cm²
37 - 2300 Hz
QTS
0.26
xmax
10.0 mm
SPL1W
95 dB
Bl/√RE
11
Pmax
2400 W
12″Woofer
fS
43 Hz
SD
565 cm²
45 - 4500 Hz
QTS
0.31
xmax
6.0 mm
SPL1W
95 dB
Bl/√RE
6.76
Pmax
1000 W