Eighteen Sound 18NLW4100

Subwoofer

18″ / 462 mm
Nominal diameter
29 Hz
Resonance
0.27
Q factor
94 dB
Sensitivity
± 15 mm
Linear excursion
3000 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
Apply
Sensitivity (1W, 1m, infinite baffle)
SPL1W
94.0
dB
Frequency response
30 - 800
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
29.0
Hz
Mechanical quality factor
QMS
11.90
Electrical quality factor
QES
0.28
Total quality factor
QTS
0.27

Large signal parameters

Maximum linear excursion
xmax
15.0
mm
Air volume displaced at xmax
VD
1838
cm³
Power handling
P
1500
W
Program power
Pmax
3000
W

Voice Coil

Nominal impedance
Z
4
Ω
DC resistance
RE
2.5
Ω
Inductance (1kHz)
LE
1.55
mH
VC Diameter
100
mm

Magnet

Force factor
Bl
22.8
N/A
Motor constant
Bl/√RE
14.4
N/√W
Material
Neodymium

Diaphragm

Effective diameter
395
mm
Effective area
SD
1225
cm²
Moving mass
MMS
314
g
Moving mass (without air load)
MMD
284.3
g
Material
Weather protected

Suspensions

Stiffness
KMS
10.42
N/mm
Compliance
CMS
96
µm/N
Equivalent volume to the compliance
VAS
207
L
Mechanical resistance
RMS
4.81
N·s/m

Dimensions

Nominal diameter
18
462
mm
Overall diameter
462
mm
Baffle cutout diameter
416
mm
Overall depth
232
mm
Flange thickness
23
mm
Mounting depth
209
mm
Volume occupied by the driver (estimated)
6.5
L
Net weight
10.0
kg
Eighteen Sound 18NLW4100 Impedance
Eighteen Sound 18NLW4100 SPL
Eighteen Sound 18NLW4100 Dimensions

Export this driver to a simulation software:

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