Oberton 8NCX
Coaxial
8″ / 210 mm
Nominal diameter
77 Hz
Resonance
0.4
Q factor
94 dB
Sensitivity
± 5.25 mm
Linear excursion
400 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
93.5
dB
Frequency response
70 - 20000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
77.2
Hz
Mechanical quality factor
QMS
4.66
Electrical quality factor
QES
0.44
Total quality factor
QTS
0.40
Large signal parameters
Maximum linear excursion
xmax
5.25
mm
Air volume displaced at xmax
VD
106
cm³
Power handling
P
200
W
Program power
Pmax
400
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.8
Ω
Inductance (1kHz)
LE
0.65
mH
VC Diameter
51
mm
Winding height
HVC
15
mm
Winding material
Aluminium
Former material
Glass fiber
Magnet
Flux density
B
0.9
T
Force factor
Bl
10.1
N/A
Motor constant
Bl/√RE
4.19
N/√W
Air gap height
HAG
9
mm
Material
Neodymium
Diaphragm
Effective diameter
160
mm
Effective area
SD
202
cm²
Moving mass
MMS
15.9
g
Moving mass (without air load)
MMD
13.7
g
Material
Paper with carbon fibers
Suspensions
Stiffness
KMS
3.75
N/mm
Compliance
CMS
267
µm/N
Equivalent volume to the compliance
VAS
14.9
L
Mechanical resistance
RMS
1.66
N·s/m
Dimensions
Nominal diameter
8
″
210
mm
Overall diameter
225
mm
Baffle cutout diameter
187
mm
Overall depth
115
mm
Volume occupied by the driver (estimated)
1.1
L
Net weight
2.6
kg
Frame material
Die Cast Aluminium
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Export this driver to a simulation software:
WinISD
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QSpeakers
SpeakerSim
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SpeakerbenchSimilar speaker drivers to Oberton 8NCX
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8″Woofer
fS
79 Hz
SD
235 cm²
80 - 5000 Hz
QTS
0.38
xmax
4.6 mm
SPL1W
94 dB
Bl/√RE
4.71
Pmax
300 W
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8″Woofer
fS
73 Hz
SD
230 cm²
60 - 4500 Hz
QTS
0.36
xmax
6.0 mm
SPL1W
94 dB
Bl/√RE
4.47
Pmax
400 W
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