Oberton 12MB35
Subwoofer
12″ / 315 mm
Nominal diameter
51 Hz
Resonance
0.27
Q factor
96 dB
Sensitivity
± 6.75 mm
Linear excursion
1400 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
95.6
dB
Frequency response
50 - 2500
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
51.4
Hz
Mechanical quality factor
QMS
13.58
Electrical quality factor
QES
0.27
Total quality factor
QTS
0.27
Large signal parameters
Maximum linear excursion
xmax
6.75
mm
Air volume displaced at xmax
VD
347
cm³
Power handling
P
700
W
Program power
Pmax
1400
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.0
Ω
Inductance (1kHz)
LE
0.68
mH
VC Diameter
88
mm
Winding height
HVC
19
mm
Winding material
Aluminium
Former material
Kapton
Magnet
Flux density
B
1.18
T
Force factor
Bl
20.5
N/A
Motor constant
Bl/√RE
9.17
N/√W
Air gap height
HAG
11
mm
Material
Ferrite
Diaphragm
Effective diameter
256
mm
Effective area
SD
515
cm²
Moving mass
MMS
70.8
g
Moving mass (without air load)
MMD
62.3
g
Material
Paper
Suspensions
Stiffness
KMS
7.41
N/mm
Compliance
CMS
135
µm/N
Equivalent volume to the compliance
VAS
50.1
L
Mechanical resistance
RMS
1.68
N·s/m
Dimensions
Nominal diameter
12
″
315
mm
Overall diameter
315
mm
Baffle cutout diameter
280
mm
Overall depth
155
mm
Volume occupied by the driver (estimated)
3.5
L
Net weight
8.5
kg
Frame material
Die cast aluminium
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SD
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55 - 4500 Hz
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fS
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SD
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SD
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