Eighteen Sound 18LW2400

4Ω
8Ω

Subwoofer

18″ / 460 mm
Nominal diameter
33 Hz
Resonance
0.32
Q factor
95 dB
Sensitivity
± 9.5 mm
Linear excursion
2400 W
Program Power
Eighteen Sound 18LW2400 SubwooferEighteen Sound 18LW2400 Subwoofer
Impedance
Excursion
Velocity
SPL
Phase
Group delay
Step response
Tone Burst
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
Discard
Apply
Sensitivity (1w, 1m, infinite baffle)
SPL1W
95.4
dB
Frequency response
30 - 2500
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
33.0
Hz
Mechanical quality factor
QMS
6.40
Electrical quality factor
QES
0.33
Total quality factor
QTS
0.32

Large signal parameters

Maximum linear excursion
xmax
9.5
mm
Air volume displaced at xmax
VD
1164
cm³
Power handling
P
1200
W
Program power
Pmax
2400
W

Voice Coil

Nominal impedance
Z
4
Ω
DC resistance
RE
2.6
Ω
Inductance (1kHz)
LE
0.9
mH
VC Diameter
100
mm
Winding material
Copper

Magnet

Force factor
Bl
18.0
N/A
Motor constant
Bl/√RE
11.2
N/√W
Material
Ferrite

Diaphragm

Effective diameter
395
mm
Effective area
SD
1225
cm²
Moving mass
MMS
200
g
Moving mass (without air load)
MMD
170.3
g
Material
Weather protected

Suspensions

Stiffness
KMS
8.62
N/mm
Compliance
CMS
116
µm/N
Equivalent volume to the compliance
VAS
235
L
Mechanical resistance
RMS
6.48
N·s/m

Dimensions

Nominal diameter
18
″
460
mm
Overall diameter
462
mm
Baffle cutout diameter
416
mm
Overall depth
214
mm
Flange thickness
24
mm
Mounting depth
190
mm
Volume occupied by the driver (estimated)
7.2
L
Net weight
12.75
kg
Impedance
SPL
Eighteen Sound 18LW2400 Impedance
Eighteen Sound 18LW2400 SPL
Eighteen Sound 18LW2400 Dimensions
DatasheetDatasheet

Export this driver to a simulation software:

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fS
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SD
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SD
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xmax
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Pmax
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