Eighteen Sound 12NLW9300
Subwoofer
12″ / 300 mm
Nominal diameter
47 Hz
Resonance
0.42
Q factor
93 dB
Sensitivity
± 8 mm
Linear excursion
1200 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
93.3
dB
Frequency response
45 - 3200
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
47.0
Hz
Mechanical quality factor
QMS
5.50
Electrical quality factor
QES
0.45
Total quality factor
QTS
0.42
Large signal parameters
Maximum linear excursion
xmax
8.0
mm
Air volume displaced at xmax
VD
425
cm³
Power handling
P
800
W
Program power
Pmax
1200
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
4.7
Ω
Inductance (1kHz)
LE
0.53
mH
VC Diameter
100
mm
Winding material
Aluminum
Magnet
Force factor
Bl
17.0
N/A
Motor constant
Bl/√RE
7.84
N/√W
Material
Neodymium
Diaphragm
Effective diameter
260
mm
Effective area
SD
531
cm²
Moving mass
MMS
82
g
Moving mass (without air load)
MMD
73.2
g
Material
Water,UV repellent
Suspensions
Stiffness
KMS
7.14
N/mm
Compliance
CMS
140
µm/N
Equivalent volume to the compliance
VAS
56
L
Mechanical resistance
RMS
4.4
N·s/m
Dimensions
Nominal diameter
12
″
300
mm
Overall diameter
315
mm
Baffle cutout diameter
282
mm
Overall depth
153
mm
Flange thickness
17
mm
Mounting depth
136
mm
Volume occupied by the driver (estimated)
2.9
L
Net weight
6.2
kg
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