Eighteen Sound 18W2001

Subwoofer

18″ / 460 mm
Nominal diameter
37 Hz
Resonance
0.25
Q factor
98 dB
Sensitivity
± 7 mm
Linear excursion
2400 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
97.5
dB
Frequency response
37 - 3000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
37.0
Hz
Mechanical quality factor
QMS
7.29
Electrical quality factor
QES
0.26
Total quality factor
QTS
0.25

Large signal parameters

Maximum linear excursion
xmax
7.0
mm
Air volume displaced at xmax
VD
794
cm³
Power handling
P
1200
W
Program power
Pmax
2400
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
5.8
Ω
Inductance (1kHz)
LE
1.9
mH
VC Diameter
100
mm

Magnet

Force factor
Bl
27.1
N/A
Motor constant
Bl/√RE
11.3
N/√W
Material
Ferrite

Diaphragm

Effective diameter
380
mm
Effective area
SD
1134
cm²
Moving mass
MMS
143
g
Moving mass (without air load)
MMD
115.6
g

Suspensions

Stiffness
KMS
7.75
N/mm
Compliance
CMS
129
µm/N
Equivalent volume to the compliance
VAS
230
L
Mechanical resistance
RMS
4.56
N·s/m

Dimensions

Nominal diameter
18
460
mm
Overall diameter
462
mm
Baffle cutout diameter
416
mm
Overall depth
205
mm
Flange thickness
19
mm
Mounting depth
186
mm
Volume occupied by the driver (estimated)
6.5
L
Net weight
11.5
kg
Eighteen Sound 18W2001 Impedance
Eighteen Sound 18W2001 SPL
Eighteen Sound 18W2001 Dimensions

Export this driver to a simulation software:

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