18″ / 450 mm
Nominal diameter
36 Hz
Resonance
0.5
Q factor
91 dB
Sensitivity
± 14 mm
Linear excursion
2000 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
90.7
dB
Frequency response
20 - 200
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
36.0
Hz
Mechanical quality factor
QMS
6.70
Electrical quality factor
QES
0.55
Total quality factor
QTS
0.50
Large signal parameters
Maximum linear excursion
xmax
14.0
mm
Air volume displaced at xmax
VD
1588
cm³
Power handling
P
1000
W
Program power
Pmax
2000
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
7.0
Ω
Inductance (1kHz)
LE
3.0
mH
VC Diameter
100
mm
Winding height
HVC
32
mm
Winding material
Copper
Former material
Kapton
Magnet
Force factor
Bl
32.5
N/A
Motor constant
Bl/√RE
12.3
N/√W
Air gap height
HAG
10
mm
Material
Ferrite
Diaphragm
Effective diameter
380
mm
Effective area
SD
1134
cm²
Moving mass
MMS
377
g
Moving mass (without air load)
MMD
349.7
g
Material
Treated Cellulose
Suspensions
Stiffness
KMS
18.87
N/mm
Compliance
CMS
53
µm/N
Equivalent volume to the compliance
VAS
93
L
Mechanical resistance
RMS
12.73
N·s/m
Surround material
Rubber - Half Roll
Spider material
Nomex Fabric
Dimensions
Nominal diameter
18
″
450
mm
Overall diameter
460
mm
Baffle cutout diameter
416
mm
Overall depth
210
mm
Flange thickness
27
mm
Mounting depth
183
mm
Volume occupied by the driver (estimated)
8.1
L
Net weight
15.7
kg
Frame material
Diecast Aluminium
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Export this driver to a simulation software:
WinISD
Basta!
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QSpeakers
SpeakerSim
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SD
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SPL1W
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Bl/√RE
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