Oberton 15NMB35
Subwoofer
15″ / 388 mm
Nominal diameter
39 Hz
Resonance
0.34
Q factor
96 dB
Sensitivity
± 6.75 mm
Linear excursion
1200 W
Program Power
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Sensitivity (1W, 1m, infinite baffle)
SPL1W
96.2
dB
Frequency response
45 - 3000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
38.9
Hz
Mechanical quality factor
QMS
8.88
Electrical quality factor
QES
0.35
Total quality factor
QTS
0.34
Large signal parameters
Maximum linear excursion
xmax
6.75
mm
Air volume displaced at xmax
VD
560
cm³
Power handling
P
600
W
Program power
Pmax
1200
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.4
Ω
Inductance (1kHz)
LE
0.88
mH
VC Diameter
88
mm
Winding height
HVC
19
mm
Winding material
Aluminium
Former material
Kapton
Magnet
Flux density
B
1.05
T
Force factor
Bl
18.54
N/A
Motor constant
Bl/√RE
7.98
N/√W
Air gap height
HAG
11
mm
Material
Neodymium
Diaphragm
Effective diameter
325
mm
Effective area
SD
830
cm²
Moving mass
MMS
90.5
g
Moving mass (without air load)
MMD
73.6
g
Material
Paper with glassfiber
Suspensions
Stiffness
KMS
5.41
N/mm
Compliance
CMS
185
µm/N
Equivalent volume to the compliance
VAS
177
L
Mechanical resistance
RMS
2.49
N·s/m
Dimensions
Nominal diameter
15
″
388
mm
Overall diameter
388
mm
Baffle cutout diameter
355
mm
Overall depth
175
mm
Volume occupied by the driver (estimated)
3.2
L
Net weight
5.32
kg
Frame material
Die Cast Aluminium
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15″Low frequency
fS
41 Hz
SD
855 cm²
45 - 3500 Hz
QTS
0.37
xmax
4.8 mm
SPL1W
97 dB
Bl/√RE
7.57
Pmax
1000 W
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15″Subwoofer
fS
42 Hz
SD
830 cm²
50 - 3000 Hz
QTS
0.34
xmax
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SPL1W
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Bl/√RE
8.09
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fS
37 Hz
SD
856 cm²
38 - 1800 Hz
QTS
0.32
xmax
7.9 mm
SPL1W
96 dB
Bl/√RE
8.43
Pmax
1200 W