Oberton 15CX
Coaxial
15″ / 388 mm
Nominal diameter
38 Hz
Resonance
0.35
Q factor
96 dB
Sensitivity
± 7 mm
Linear excursion
900 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
95.6
dB
Frequency response
50 - 16000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
38.2
Hz
Mechanical quality factor
QMS
5.61
Electrical quality factor
QES
0.37
Total quality factor
QTS
0.35
Large signal parameters
Maximum linear excursion
xmax
7.0
mm
Air volume displaced at xmax
VD
580
cm³
Power handling
P
450
W
Program power
Pmax
900
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.2
Ω
Inductance (1kHz)
LE
0.69
mH
VC Diameter
77
mm
Winding height
HVC
18.5
mm
Winding material
Copper
Former material
Kapton
Magnet
Flux density
B
1.15
T
Force factor
Bl
18.45
N/A
Motor constant
Bl/√RE
8.11
N/√W
Air gap height
HAG
9
mm
Material
Ferrite
Diaphragm
Effective diameter
325
mm
Effective area
SD
829
cm²
Moving mass
MMS
101.8
g
Moving mass (without air load)
MMD
85
g
Material
Paper with glassfiber
Suspensions
Stiffness
KMS
5.88
N/mm
Compliance
CMS
170
µm/N
Equivalent volume to the compliance
VAS
164
L
Mechanical resistance
RMS
4.36
N·s/m
Dimensions
Nominal diameter
15
″
388
mm
Overall diameter
388
mm
Baffle cutout diameter
355
mm
Overall depth
214
mm
Volume occupied by the driver (estimated)
5.8
L
Net weight
10.9
kg
Frame material
Die Cast Aluminium
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SpeakerbenchSimilar speaker drivers to Oberton 15CX
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15″Subwoofer
fS
38 Hz
SD
847 cm²
40 - 3150 Hz
QTS
0.34
xmax
9.2 mm
SPL1W
95 dB
Bl/√RE
8.7
Pmax
1200 W
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15″Woofer
fS
40 Hz
SD
881 cm²
40 - 3000 Hz
QTS
0.35
xmax
5.2 mm
SPL1W
97 dB
Bl/√RE
8.91
Pmax
1700 W
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BMS 15N6208 Ω
15″Subwoofer
fS
41 Hz
SD
880 cm²
35 - 2500 Hz
QTS
0.35
xmax
5.5 mm
SPL1W
96 dB
Bl/√RE
8.63
Pmax
1000 W