18″ / 460 mm
Nominal diameter
28 Hz
Resonance
0.29
Q factor
96 dB
Sensitivity
± 9.45 mm
Linear excursion
1200 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
96.1
dB
Frequency response
30 - 3150
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
28.0
Hz
Mechanical quality factor
QMS
7.20
Electrical quality factor
QES
0.30
Total quality factor
QTS
0.29
Large signal parameters
Maximum linear excursion
xmax
9.45
mm
Maximum excursion before damage
xlim
17.5
mm
Air volume displaced at xmax
VD
1141
cm³
Power handling
P
600
W
Program power
Pmax
1200
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
3.3
Ω
Inductance (1kHz)
LE
1.07
mH
VC Diameter
77
mm
Winding height
HVC
22.4
mm
Winding material
Copper
Former material
Glass Fiber
Magnet
Flux density
B
1.2
T
Force factor
Bl
16.7
N/A
Motor constant
Bl/√RE
9.19
N/√W
Air gap height
HAG
10.5
mm
Material
Neodymium Slug
Diaphragm
Effective diameter
392
mm
Effective area
SD
1207
cm²
Moving mass
MMS
143.9
g
Moving mass (without air load)
MMD
114.7
g
Suspensions
Stiffness
KMS
4.55
N/mm
Compliance
CMS
220
µm/N
Equivalent volume to the compliance
VAS
457
L
Mechanical resistance
RMS
3.5
N·s/m
Dimensions
Nominal diameter
18
″
460
mm
Overall diameter
460
mm
Baffle cutout diameter
424
mm
Overall depth
202
mm
Flange thickness
14
mm
Mounting depth
188
mm
Volume occupied by the driver
5.7
L
Net weight
4.6
kg
Frame material
Aluminium
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SpeakerbenchSimilar subwoofers to FaitalPRO 18FH500 4Ω
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18″Subwoofer
fS
28 Hz
SD
1140 cm²
41 - 2400 Hz
QTS
0.29
xmax
6.1 mm
SPL1W
96 dB
Bl/√RE
8.81
Pmax
1300 W
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21″Subwoofer
fS
28 Hz
SD
1735 cm²
27 - 2500 Hz
QTS
0.33
xmax
11.0 mm
SPL1W
96 dB
Bl/√RE
13
Pmax
2000 W
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18″Subwoofer
fS
30 Hz
SD
1207 cm²
30 - 2500 Hz
QTS
0.29
xmax
9.3 mm
SPL1W
97 dB
Bl/√RE
9.3
Pmax
1200 W