Eighteen Sound 18TLW3000 8Ω

Subwoofer

18″ / 460 mm
Nominal diameter
33 Hz
Resonance
0.41
Q factor
93 dB
Sensitivity
± 12 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
93.4
dB
Frequency response
30 - 2000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
33.0
Hz
Mechanical quality factor
QMS
13.00
Electrical quality factor
QES
0.42
Total quality factor
QTS
0.41

Large signal parameters

Maximum linear excursion
xmax
12.0
mm
Air volume displaced at xmax
VD
1470
cm³
Power handling
P
1800
W
Program power
Pmax
3600
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
4.6
Ω
Inductance (1kHz)
LE
1.8
mH
VC Diameter
100
mm
Winding material
Copper

Magnet

Force factor
Bl
24.5
N/A
Motor constant
Bl/√RE
11.4
N/√W
Material
Ferrite

Diaphragm

Effective diameter
395
mm
Effective area
SD
1225
cm²
Moving mass
MMS
266
g
Moving mass (without air load)
MMD
236.3
g
Material
Water,UV repellent

Suspensions

Stiffness
KMS
11.49
N/mm
Compliance
CMS
87
µm/N
Equivalent volume to the compliance
VAS
185
L
Mechanical resistance
RMS
4.24
N·s/m

Dimensions

Nominal diameter
18
460
mm
Overall diameter
462
mm
Baffle cutout diameter
416
mm
Overall depth
275
mm
Flange thickness
24
mm
Mounting depth
251
mm
Volume occupied by the driver (estimated)
8.6
L
Net weight
13.2
kg
Eighteen Sound 18TLW3000 8Ω Impedance
Eighteen Sound 18TLW3000 8Ω SPL
Eighteen Sound 18TLW3000 8Ω Dimensions

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