Oberton 15NCX
Coaxial
15″ / 388 mm
Nominal diameter
44 Hz
Resonance
0.36
Q factor
96 dB
Sensitivity
± 7.75 mm
Linear excursion
900 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
96.4
dB
Frequency response
50 - 16000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
43.7
Hz
Mechanical quality factor
QMS
10.02
Electrical quality factor
QES
0.38
Total quality factor
QTS
0.36
Large signal parameters
Maximum linear excursion
xmax
7.75
mm
Air volume displaced at xmax
VD
643
cm³
Power handling
P
450
W
Program power
Pmax
900
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.1
Ω
Inductance (1kHz)
LE
0.78
mH
VC Diameter
77
mm
Winding height
HVC
20
mm
Winding material
Copper
Former material
Kapton
Magnet
Flux density
B
1.1
T
Force factor
Bl
18.55
N/A
Motor constant
Bl/√RE
8.21
N/√W
Air gap height
HAG
9
mm
Material
Neodymium
Diaphragm
Effective diameter
325
mm
Effective area
SD
829
cm²
Moving mass
MMS
91.9
g
Moving mass (without air load)
MMD
75
g
Material
Paper with glassfiber
Suspensions
Stiffness
KMS
6.94
N/mm
Compliance
CMS
144
µm/N
Equivalent volume to the compliance
VAS
138
L
Mechanical resistance
RMS
2.52
N·s/m
Dimensions
Nominal diameter
15
″
388
mm
Overall diameter
388
mm
Baffle cutout diameter
355
mm
Overall depth
209
mm
Volume occupied by the driver (estimated)
3.8
L
Net weight
5.65
kg
Frame material
Die Cast Aluminium
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15″Subwoofer
fS
44 Hz
SD
880 cm²
45 - 4000 Hz
QTS
0.34
xmax
7.0 mm
SPL1W
97 dB
Bl/√RE
8.69
Pmax
1400 W
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15″Subwoofer
fS
45 Hz
SD
881 cm²
40 - 4000 Hz
QTS
0.39
xmax
8.3 mm
SPL1W
97 dB
Bl/√RE
8.55
Pmax
1800 W
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12″Woofer
fS
46 Hz
SD
531 cm²
50 - 6000 Hz
QTS
0.36
xmax
4.0 mm
SPL1W
96 dB
Bl/√RE
5.31
Pmax
500 W