Oberton 15L400
Subwoofer
15″ / 381 mm
Nominal diameter
43 Hz
Resonance
0.29
Q factor
101 dB
Sensitivity
± 3.25 mm
Linear excursion
800 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
100.9
dB
Frequency response
45 - 4000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
43.3
Hz
Mechanical quality factor
QMS
11.56
Electrical quality factor
QES
0.29
Total quality factor
QTS
0.29
Large signal parameters
Maximum linear excursion
xmax
3.25
mm
Air volume displaced at xmax
VD
270
cm³
Power handling
P
400
W
Program power
Pmax
800
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.5
Ω
Inductance (1kHz)
LE
0.62
mH
VC Diameter
64
mm
Winding height
HVC
11
mm
Winding material
Aluminium
Former material
Kapton
Magnet
Flux density
B
1.35
T
Force factor
Bl
16.87
N/A
Motor constant
Bl/√RE
7.23
N/√W
Air gap height
HAG
9
mm
Material
Ferrite
Diaphragm
Effective diameter
325
mm
Effective area
SD
830
cm²
Moving mass
MMS
56.6
g
Moving mass (without air load)
MMD
39.7
g
Material
Paper
Suspensions
Stiffness
KMS
4.18
N/mm
Compliance
CMS
239
µm/N
Equivalent volume to the compliance
VAS
230
L
Mechanical resistance
RMS
1.33
N·s/m
Dimensions
Nominal diameter
15
″
381
mm
Overall diameter
388
mm
Baffle cutout diameter
352
mm
Overall depth
165
mm
Volume occupied by the driver (estimated)
3.8
L
Net weight
7.25
kg
Frame material
Die cast aluminium
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SD
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SD
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xmax
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