Oberton 15MB500
Subwoofer
15″ / 385 mm
Nominal diameter
42 Hz
Resonance
0.34
Q factor
97 dB
Sensitivity
± 7.75 mm
Linear excursion
1000 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
96.5
dB
Frequency response
50 - 3000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
41.5
Hz
Mechanical quality factor
QMS
12.85
Electrical quality factor
QES
0.35
Total quality factor
QTS
0.34
Large signal parameters
Maximum linear excursion
xmax
7.75
mm
Air volume displaced at xmax
VD
643
cm³
Power handling
P
500
W
Program power
Pmax
1000
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.3
Ω
Inductance (1kHz)
LE
0.92
mH
VC Diameter
77
mm
Winding height
HVC
21
mm
Winding material
Aluminium
Former material
Kapton
Magnet
Flux density
B
1.2
T
Force factor
Bl
18.54
N/A
Motor constant
Bl/√RE
8.09
N/√W
Air gap height
HAG
11
mm
Material
Ferrite
Diaphragm
Effective diameter
325
mm
Effective area
SD
830
cm²
Moving mass
MMS
87.5
g
Moving mass (without air load)
MMD
70.6
g
Material
Paper with glassfiber
Suspensions
Stiffness
KMS
5.95
N/mm
Compliance
CMS
168
µm/N
Equivalent volume to the compliance
VAS
162
L
Mechanical resistance
RMS
1.78
N·s/m
Dimensions
Nominal diameter
15
″
385
mm
Overall diameter
388
mm
Baffle cutout diameter
355
mm
Overall depth
172
mm
Volume occupied by the driver (estimated)
4.1
L
Net weight
7.8
kg
Frame material
Die Cast Aluminium
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SpeakerbenchSimilar subwoofers to Oberton 15MB500
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15″Subwoofer
fS
42 Hz
SD
850 cm²
42 - 4500 Hz
QTS
0.34
xmax
6.5 mm
SPL1W
97 dB
Bl/√RE
8.08
Pmax
700 W
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15″Woofer
fS
40 Hz
SD
855 cm²
40 - 2000 Hz
QTS
0.33
xmax
5.5 mm
SPL1W
96 dB
Bl/√RE
8.38
Pmax
800 W
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