Oberton 18NXB1601

Woofer

18″ / 461 mm
Nominal diameter
35 Hz
Resonance
0.29
Q factor
95 dB
Sensitivity
± 12.5 mm
Linear excursion
3200 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
94.9
dB
Frequency response
30 - 250
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
34.6
Hz
Mechanical quality factor
QMS
5.75
Electrical quality factor
QES
0.30
Total quality factor
QTS
0.29

Large signal parameters

Maximum linear excursion
xmax
12.5
mm
Air volume displaced at xmax
VD
1448
cm³
Power handling
P
1600
W
Program power
Pmax
3200
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
5.2
Ω
Inductance (1kHz)
LE
1.2
mH
VC Diameter
115
mm
Winding height
HVC
32
mm
Winding material
Copper
Former material
Glass fiber

Magnet

Flux density
B
1.1
T
Force factor
Bl
30.48
N/A
Motor constant
Bl/√RE
13.4
N/√W
Air gap height
HAG
14
mm
Material
Neodymium

Diaphragm

Effective diameter
384
mm
Effective area
SD
1158
cm²
Moving mass
MMS
248.5
g
Moving mass (without air load)
MMD
220.5
g
Material
Paper with carbon fibers

Suspensions

Stiffness
KMS
11.78
N/mm
Compliance
CMS
85
µm/N
Equivalent volume to the compliance
VAS
146
L
Mechanical resistance
RMS
9.41
N·s/m

Dimensions

Nominal diameter
18
461
mm
Volume occupied by the driver (estimated)
7.0
L
Frame material
Die cast aluminium
Oberton 18NXB1601 Dimensions

Export this driver to a simulation software:

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fS
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SD
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SD
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