18″ / 450 mm
Nominal diameter
35 Hz
Resonance
0.24
Q factor
97 dB
Sensitivity
± 8.5 mm
Linear excursion
1800 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
97.3
dB
Frequency response
35 - 1200
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
35.0
Hz
Mechanical quality factor
QMS
19.88
Electrical quality factor
QES
0.24
Total quality factor
QTS
0.24
Large signal parameters
Maximum linear excursion
xmax
8.5
mm
Air volume displaced at xmax
VD
984
cm³
Power handling
P
900
W
Program power
Pmax
1800
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
3.2
Ω
Inductance (1kHz)
LE
1.03
mH
VC Diameter
100
mm
Winding height
HVC
22
mm
Winding material
Sandwich aluminium
Former material
Kapton
Magnet
Force factor
Bl
21.8
N/A
Motor constant
Bl/√RE
12.3
N/√W
Air gap height
HAG
10
mm
Material
Ferrite
Diaphragm
Effective diameter
384
mm
Effective area
SD
1158
cm²
Moving mass
MMS
163.6
g
Moving mass (without air load)
MMD
135.7
g
Material
Doped cellulose fiber
Suspensions
Stiffness
KMS
7.69
N/mm
Compliance
CMS
130
µm/N
Equivalent volume to the compliance
VAS
236
L
Mechanical resistance
RMS
1.81
N·s/m
Surround material
Nomex Fabric
Spider material
Nomex Fabric
Dimensions
Nominal diameter
18
″
450
mm
Overall diameter
460
mm
Baffle cutout diameter
416
mm
Overall depth
190
mm
Flange thickness
17
mm
Mounting depth
173
mm
Volume occupied by the driver (estimated)
6.7
L
Net weight
12.9
kg
Frame material
Aluminium
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Export this driver to a simulation software:
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QSpeakers
SpeakerSim
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SpeakerbenchSimilar woofers to Ciare PW455
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18″Subwoofer
fS
37 Hz
SD
1134 cm²
37 - 3000 Hz
QTS
0.25
xmax
7.0 mm
SPL1W
98 dB
Bl/√RE
11
Pmax
2400 W
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18″Subwoofer
fS
36 Hz
SD
1134 cm²
40 - 3500 Hz
QTS
0.26
xmax
6.0 mm
SPL1W
97 dB
Bl/√RE
12
Pmax
1200 W
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18″Subwoofer
fS
35 Hz
SD
1134 cm²
37 - 4700 Hz
QTS
0.23
xmax
7.0 mm
SPL1W
98 dB
Bl/√RE
12
Pmax
1400 W