Eighteen Sound 12LW1400
Subwoofer
12″ / 300 mm
Nominal diameter
45 Hz
Resonance
0.3
Q factor
93 dB
Sensitivity
± 8.25 mm
Linear excursion
1400 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
93.4
dB
Frequency response
51 - 4000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
45.0
Hz
Mechanical quality factor
QMS
5.00
Electrical quality factor
QES
0.32
Total quality factor
QTS
0.30
Large signal parameters
Maximum linear excursion
xmax
8.25
mm
Air volume displaced at xmax
VD
438
cm³
Power handling
P
900
W
Program power
Pmax
1400
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.2
Ω
Inductance (1kHz)
LE
1.5
mH
VC Diameter
100
mm
Winding material
Aluminum
Magnet
Force factor
Bl
20.0
N/A
Motor constant
Bl/√RE
8.77
N/√W
Material
Ferrite
Diaphragm
Effective diameter
260
mm
Effective area
SD
531
cm²
Moving mass
MMS
88
g
Moving mass (without air load)
MMD
79.2
g
Material
Weather protected
Suspensions
Stiffness
KMS
7.04
N/mm
Compliance
CMS
142
µm/N
Equivalent volume to the compliance
VAS
55
L
Mechanical resistance
RMS
4.98
N·s/m
Dimensions
Nominal diameter
12
″
300
mm
Overall diameter
315
mm
Baffle cutout diameter
282
mm
Overall depth
141
mm
Flange thickness
17
mm
Mounting depth
124
mm
Volume occupied by the driver (estimated)
3.9
L
Net weight
10.9
kg
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