Oberton 15B450
Woofer
15″ / 388 mm
Nominal diameter
45 Hz
Resonance
0.29
Q factor
98 dB
Sensitivity
± 6.75 mm
Linear excursion
900 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
97.7
dB
Frequency response
45 - 2500
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
45.1
Hz
Mechanical quality factor
QMS
9.60
Electrical quality factor
QES
0.29
Total quality factor
QTS
0.29
Large signal parameters
Maximum linear excursion
xmax
6.75
mm
Air volume displaced at xmax
VD
560
cm³
Power handling
P
450
W
Program power
Pmax
900
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.3
Ω
Inductance (1kHz)
LE
1.08
mH
VC Diameter
77
mm
Winding height
HVC
18
mm
Winding material
Copper
Former material
Glass fiber
Magnet
Flux density
B
1.33
T
Force factor
Bl
20.43
N/A
Motor constant
Bl/√RE
8.86
N/√W
Air gap height
HAG
9
mm
Material
Ferrite
Diaphragm
Effective diameter
325
mm
Effective area
SD
830
cm²
Moving mass
MMS
81.6
g
Moving mass (without air load)
MMD
64.7
g
Material
Paper with glassfiber
Suspensions
Stiffness
KMS
6.54
N/mm
Compliance
CMS
153
µm/N
Equivalent volume to the compliance
VAS
147
L
Mechanical resistance
RMS
2.41
N·s/m
Dimensions
Nominal diameter
15
″
388
mm
Overall diameter
388
mm
Baffle cutout diameter
352
mm
Overall depth
163
mm
Volume occupied by the driver (estimated)
3.8
L
Net weight
7.5
kg
Frame material
Die cast aluminium
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fS
47 Hz
SD
855 cm²
45 - 18000 Hz
QTS
0.30
xmax
8.5 mm
SPL1W
97 dB
Bl/√RE
9.39
Pmax
1000 W
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15″Subwoofer
fS
48 Hz
SD
850 cm²
45 - 5100 Hz
QTS
0.31
xmax
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SPL1W
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Bl/√RE
8.95
Pmax
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fS
43 Hz
SD
855 cm²
40 - 18000 Hz
QTS
0.28
xmax
6.0 mm
SPL1W
98 dB
Bl/√RE
8.71
Pmax
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