18″ / 460 mm
Nominal diameter
30 Hz
Resonance
0.26
Q factor
97 dB
Sensitivity
± 9.45 mm
Linear excursion
1200 W
Program Power
Driver
Port
Combined
Frequency response
Hz
Impedance
Ω
Impedance Phase
°
Excursion
mm
Velocity
m/s
SPL
dB
Acoustical Phase
°
Group Delay
ms
Transient response
ms
Sensitivity (1w, 1m, infinite baffle)
SPL1W
96.8
dB
Frequency response
30 - 2500
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
30.0
Hz
Mechanical quality factor
QMS
13.60
Electrical quality factor
QES
0.27
Total quality factor
QTS
0.26
Large signal parameters
Maximum linear excursion
xmax
9.45
mm
Maximum excursion before damage
xlim
20.0
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
1.06
mH
VC Diameter
77
mm
Winding height
HVC
22.4
mm
Former material
Glass Fiber
Magnet
Flux density
B
1.2
T
Force factor
Bl
18.3
N/A
Motor constant
Bl/√RE
10.1
N/√W
Air gap height
HAG
10.5
mm
Diaphragm
Effective diameter
392
mm
Effective area
SD
1207
cm²
Moving mass
MMS
146.3
g
Moving mass (without air load)
MMD
117.1
g
Suspensions
Stiffness
KMS
5.26
N/mm
Compliance
CMS
190
µm/N
Equivalent volume to the compliance
VAS
391
L
Mechanical resistance
RMS
2.0
N·s/m
Dimensions
Nominal diameter
18
″
460
mm
Overall diameter
460
mm
Baffle cutout diameter
421
mm
Overall depth
202
mm
Flange thickness
14
mm
Mounting depth
188
mm
Volume occupied by the driver
6.1
L
Net weight
8.8
kg
Similar subwoofers to FaitalPRO 18FH510 4Ω
18″Low frequency
fS
32 Hz
SD
1164 cm²
30 - 2000 Hz
QTS
0.30
xmax
6.0 mm
SPL1W
97 dB
Bl/√RE
9.52
Pmax
1400 W
15″Woofer
fS
32 Hz
SD
855 cm²
32 - 4000 Hz
QTS
0.26
xmax
5.0 mm
SPL1W
98 dB
Bl/√RE
7.06
Pmax
240 W
18″Subwoofer
fS
32 Hz
SD
1140 cm²
32 - 2000 Hz
QTS
0.29
xmax
7.0 mm
SPL1W
97 dB
Bl/√RE
9.04
Pmax
1400 W