18″ / 460 mm
Nominal diameter
33 Hz
Resonance
0.41
Q factor
93 dB
Sensitivity
± 12 mm
Linear excursion
3600 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
93.4
dB
Frequency response
30 - 2000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
33.0
Hz
Mechanical quality factor
QMS
13.00
Electrical quality factor
QES
0.42
Total quality factor
QTS
0.41
Large signal parameters
Maximum linear excursion
xmax
12.0
mm
Air volume displaced at xmax
VD
1470
cm³
Power handling
P
1800
W
Program power
Pmax
3600
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
4.6
Ω
Inductance (1kHz)
LE
1.8
mH
VC Diameter
100
mm
Winding material
Copper
Magnet
Force factor
Bl
24.5
N/A
Motor constant
Bl/√RE
11.4
N/√W
Material
Ferrite
Diaphragm
Effective diameter
395
mm
Effective area
SD
1225
cm²
Moving mass
MMS
266
g
Moving mass (without air load)
MMD
236.3
g
Material
Water,UV repellent
Suspensions
Stiffness
KMS
11.49
N/mm
Compliance
CMS
87
µm/N
Equivalent volume to the compliance
VAS
185
L
Mechanical resistance
RMS
4.24
N·s/m
Dimensions
Nominal diameter
18
″
460
mm
Overall diameter
462
mm
Baffle cutout diameter
416
mm
Overall depth
275
mm
Flange thickness
24
mm
Mounting depth
251
mm
Volume occupied by the driver (estimated)
8.6
L
Net weight
13.2
kg
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Export this driver to a simulation software:
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
SpeakerbenchSimilar subwoofers to Eighteen Sound 18TLW3000 8Ω
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18″Subwoofer
fS
35 Hz
SD
1210 cm²
35 - 1000 Hz
QTS
0.39
xmax
12.0 mm
SPL1W
94 dB
Bl/√RE
12
Pmax
3000 W
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18″Subwoofer
fS
32 Hz
SD
1212 cm²
30 - 1500 Hz
QTS
0.38
xmax
13.0 mm
SPL1W
94 dB
Bl/√RE
12
Pmax
3200 W
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18″Subwoofer
fS
36 Hz
SD
1225 cm²
35 - 1000 Hz
QTS
0.42
xmax
13.0 mm
SPL1W
94 dB
Bl/√RE
12
Pmax
3000 W