Eighteen Sound 18NTLW5000

Subwoofer

18″ / 462 mm
Nominal diameter
32 Hz
Resonance
0.3
Q factor
94 dB
Sensitivity
± 17.5 mm
Linear excursion
4000 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
35 - 1000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
32.0
Hz
Mechanical quality factor
QMS
9.50
Electrical quality factor
QES
0.31
Total quality factor
QTS
0.30

Large signal parameters

Maximum linear excursion
xmax
17.5
mm
Air volume displaced at xmax
VD
2144
cm³
Power handling
P
1800
W
Program power
Pmax
4000
W

Voice Coil

Nominal impedance
Z
4
Ω
DC resistance
RE
3.1
Ω
Inductance (1kHz)
LE
1.23
mH
VC Diameter
115
mm
Winding material
Aluminum

Magnet

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

Diaphragm

Effective diameter
395
mm
Effective area
SD
1225
cm²
Moving mass
MMS
306
g
Moving mass (without air load)
MMD
276.3
g
Material
Water,UV repellent

Suspensions

Stiffness
KMS
12.35
N/mm
Compliance
CMS
81
µm/N
Equivalent volume to the compliance
VAS
165
L
Mechanical resistance
RMS
6.48
N·s/m

Dimensions

Nominal diameter
18
462
mm
Overall diameter
462
mm
Baffle cutout diameter
416
mm
Overall depth
310
mm
Flange thickness
26
mm
Mounting depth
284
mm
Volume occupied by the driver (estimated)
8.8
L
Net weight
12.0
kg
Eighteen Sound 18NTLW5000 Impedance
Eighteen Sound 18NTLW5000 SPL
Eighteen Sound 18NTLW5000 Dimensions

Export this driver to a simulation software:

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