Fane IMPERIUM 18XL
Subwoofer
18″ / 457 mm
Nominal diameter
36 Hz
Resonance
0.53
Q factor
94 dB
Sensitivity
± 10.5 mm
Linear excursion
2600 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
93.8
dB
Frequency response
30 - 2000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
36.0
Hz
Mechanical quality factor
QMS
11.10
Electrical quality factor
QES
0.56
Total quality factor
QTS
0.53
Large signal parameters
Maximum linear excursion
xmax
10.5
mm
Air volume displaced at xmax
VD
1191
cm³
Power handling
P
1300
W
Program power
Pmax
2600
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.9
Ω
Inductance (1kHz)
LE
2.9
mH
VC Diameter
127
mm
Winding height
HVC
25
mm
Winding material
Copper
Former material
Glass Fibre
Magnet
Flux density
B
0.98
T
Force factor
Bl
20.36
N/A
Motor constant
Bl/√RE
8.38
N/√W
Air gap height
HAG
9
mm
Weight
2.999
kg
Material
Ferrite
Diaphragm
Effective diameter
398
mm
Effective area
SD
1134
cm²
Moving mass
MMS
174
g
Moving mass (without air load)
MMD
145.5
g
Material
Paper
Suspensions
Stiffness
KMS
9.09
N/mm
Compliance
CMS
110
µm/N
Equivalent volume to the compliance
VAS
205
L
Mechanical resistance
RMS
3.55
N·s/m
Surround material
Polyvinyl damped Poly Cotton
Dimensions
Nominal diameter
18
″
457
mm
Overall diameter
485
mm
Baffle cutout diameter
415
mm
Overall depth
202
mm
Flange thickness
12
mm
Mounting depth
190
mm
Volume occupied by the driver (estimated)
7.3
L
Net weight
13.09
kg
Frame material
Die-cast Aluminium
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SD
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Bl/√RE
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SD
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SD
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32 - 300 Hz
QTS
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xmax
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SPL1W
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