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
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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
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SpeakerbenchSimilar subwoofers to Oberton 18NXB1601
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15″Low frequency
fS
35 Hz
SD
855 cm²
35 - 2500 Hz
QTS
0.28
xmax
8.5 mm
SPL1W
95 dB
Bl/√RE
9.74
Pmax
2000 W
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15″Subwoofer
fS
35 Hz
SD
850 cm²
42 - 2000 Hz
QTS
0.32
xmax
9.0 mm
SPL1W
94 dB
Bl/√RE
9.76
Pmax
1400 W
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15″Woofer
fS
37 Hz
SD
830 cm²
35 - 1000 Hz
QTS
0.29
xmax
14.3 mm
SPL1W
95 dB
Bl/√RE
9.64
Pmax
1200 W