Oberton 12CX1
Coaxial
12″ / 315 mm
Nominal diameter
58 Hz
Resonance
0.37
Q factor
96 dB
Sensitivity
± 4.25 mm
Linear excursion
600 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
96.4
dB
Frequency response
60 - 16000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
57.6
Hz
Mechanical quality factor
QMS
4.84
Electrical quality factor
QES
0.40
Total quality factor
QTS
0.37
Large signal parameters
Maximum linear excursion
xmax
4.25
mm
Air volume displaced at xmax
VD
219
cm³
Power handling
P
300
W
Program power
Pmax
600
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.2
Ω
Inductance (1kHz)
LE
0.74
mH
VC Diameter
65
mm
Winding height
HVC
13
mm
Winding material
Copper
Former material
Kapton
Magnet
Flux density
B
1.0
T
Force factor
Bl
13.94
N/A
Motor constant
Bl/√RE
6.1
N/√W
Air gap height
HAG
9
mm
Material
Ferrite
Diaphragm
Effective diameter
256
mm
Effective area
SD
515
cm²
Moving mass
MMS
41.3
g
Moving mass (without air load)
MMD
32.9
g
Material
Paper
Suspensions
Stiffness
KMS
5.41
N/mm
Compliance
CMS
185
µm/N
Equivalent volume to the compliance
VAS
68.5
L
Mechanical resistance
RMS
3.08
N·s/m
Dimensions
Nominal diameter
12
″
315
mm
Overall diameter
311
mm
Baffle cutout diameter
280
mm
Overall depth
173
mm
Volume occupied by the driver (estimated)
3.5
L
Net weight
7.8
kg
Frame material
Die Cast Aluminium
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12″Low frequency
fS
56 Hz
SD
531 cm²
60 - 4000 Hz
QTS
0.39
xmax
4.0 mm
SPL1W
96 dB
Bl/√RE
5.95
Pmax
300 W
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12″Full-range
fS
57 Hz
SD
499 cm²
60 - 10000 Hz
QTS
0.38
xmax
3.0 mm
SPL1W
97 dB
Bl/√RE
6.08
Pmax
300 W
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12″Full-range
fS
56 Hz
SD
531 cm²
50 - 10000 Hz
QTS
0.40
xmax
3.0 mm
SPL1W
96 dB
Bl/√RE
5.79
Pmax
200 W