Eighteen Sound 18LW1400

Subwoofer

18″ / 460 mm
Nominal diameter
33 Hz
Resonance
0.32
Q factor
96 dB
Sensitivity
± 9 mm
Linear excursion
1400 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
Discard
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Specifications

Sensitivity (1W, 1m, infinite baffle)
SPL1W
96.0
dB
Frequency response
28 - 2500
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
33.0
Hz
Mechanical quality factor
QMS
6.60
Electrical quality factor
QES
0.34
Total quality factor
QTS
0.32

Large signal parameters

Maximum linear excursion
xmax
9.0
mm
Air volume displaced at xmax
VD
1103
cm³
Power handling
P
1000
W
Program power
Pmax
1400
W

Voice Coil

Nominal impedance
Z
4
Ω
DC resistance
RE
3.6
Ω
Inductance (1kHz)
LE
1.5
mH
VC Diameter
100
mm
Winding material
Copper

Magnet

Force factor
Bl
22.1
N/A
Motor constant
Bl/√RE
11.6
N/√W

Diaphragm

Effective diameter
395
mm
Effective area
SD
1225
cm²
Moving mass
MMS
190
g
Moving mass (without air load)
MMD
160.3
g

Suspensions

Stiffness
KMS
8.2
N/mm
Compliance
CMS
122
µm/N
Equivalent volume to the compliance
VAS
210
L
Mechanical resistance
RMS
5.97
N·s/m

Dimensions

Nominal diameter
18
460
mm
Overall diameter
462
mm
Baffle cutout diameter
416
mm
Overall depth
215
mm
Flange thickness
26
mm
Mounting depth
189
mm
Volume occupied by the driver (estimated)
7.4
L
Net weight
13.3
kg
Eighteen Sound 18LW1400 Impedance
Eighteen Sound 18LW1400 SPL
Eighteen Sound 18LW1400 Dimensions

Export this driver to a simulation software:

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