Eighteen Sound 18NLW9000

Subwoofer

18″ / 462 mm
Nominal diameter
32 Hz
Resonance
0.21
Q factor
96 dB
Sensitivity
± 14 mm
Linear excursion
3600 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
96.3
dB
Frequency response
32 - 2500
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
32.0
Hz
Mechanical quality factor
QMS
5.00
Electrical quality factor
QES
0.22
Total quality factor
QTS
0.21

Large signal parameters

Maximum linear excursion
xmax
14.0
mm
Air volume displaced at xmax
VD
1711
cm³
Power handling
P
1800
W
Program power
Pmax
3600
W

Voice Coil

Nominal impedance
Z
4
Ω
DC resistance
RE
3.1
Ω
Inductance (1kHz)
LE
1.2
mH
VC Diameter
135
mm

Magnet

Force factor
Bl
25.0
N/A
Motor constant
Bl/√RE
14.2
N/√W
Material
Neodymium

Diaphragm

Effective diameter
394
mm
Effective area
SD
1222
cm²
Moving mass
MMS
228
g
Moving mass (without air load)
MMD
198.3
g
Material
Weather protected

Suspensions

Stiffness
KMS
9.26
N/mm
Compliance
CMS
108
µm/N
Equivalent volume to the compliance
VAS
247
L
Mechanical resistance
RMS
9.17
N·s/m

Dimensions

Nominal diameter
18
462
mm
Overall diameter
462
mm
Baffle cutout diameter
422
mm
Overall depth
237
mm
Flange thickness
26
mm
Mounting depth
211
mm
Volume occupied by the driver (estimated)
7.6
L
Net weight
12.5
kg
Eighteen Sound 18NLW9000 Impedance
Eighteen Sound 18NLW9000 SPL
Eighteen Sound 18NLW9000 Dimensions

Export this driver to a simulation software:

WinISDWinISDBasta!Basta!HornrespHornrespQSpeakersQSpeakersSpeakerSimSpeakerSimMfbLabsMfbLabsSpeakerbenchSpeakerbench

Similar subwoofers to Eighteen Sound 18NLW9000

Oberton 18XB1500 Woofer
18Woofer
fS
36 Hz
SD
1158 cm²
30 - 1000 Hz
QTS
0.23
xmax
11.0 mm
SPL1W
96 dB
Bl/√RE
14
Pmax
3000 W