Oberton 6NB150
Woofer
6.5″ / 170 mm
Nominal diameter
62 Hz
Resonance
0.28
Q factor
91 dB
Sensitivity
± 5.5 mm
Linear excursion
300 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
90.5
dB
Frequency response
60 - 3000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
62.3
Hz
Mechanical quality factor
QMS
5.22
Electrical quality factor
QES
0.30
Total quality factor
QTS
0.28
Large signal parameters
Maximum linear excursion
xmax
5.5
mm
Air volume displaced at xmax
VD
70
cm³
Power handling
P
150
W
Program power
Pmax
300
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.6
Ω
Inductance (1kHz)
LE
0.65
mH
VC Diameter
38
mm
Winding height
HVC
14
mm
Winding material
Copper
Former material
Kapton
Magnet
Flux density
B
1.37
T
Force factor
Bl
10.77
N/A
Motor constant
Bl/√RE
4.56
N/√W
Air gap height
HAG
6
mm
Material
Neodymium
Diaphragm
Effective diameter
127
mm
Effective area
SD
127
cm²
Moving mass
MMS
15.7
g
Moving mass (without air load)
MMD
14.6
g
Material
Paper with glassfiber
Suspensions
Stiffness
KMS
2.41
N/mm
Compliance
CMS
415
µm/N
Equivalent volume to the compliance
VAS
9.3
L
Mechanical resistance
RMS
1.18
N·s/m
Dimensions
Nominal diameter
6.5
″
170
mm
Overall diameter
185
mm
Baffle cutout diameter
145
mm
Overall depth
79
mm
Volume occupied by the driver (estimated)
0.47
L
Net weight
1.25
kg
Frame material
Die cast aluminium
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SpeakerbenchSimilar woofers to Oberton 6NB150
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6.5″Mid Bass
fS
58 Hz
SD
135 cm²
60 - 9000 Hz
QTS
0.26
xmax
5.0 mm
SPL1W
91 dB
Bl/√RE
4.74
Pmax
400 W
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6.5″Mid Bass
fS
56 Hz
SD
135 cm²
60 - 9000 Hz
QTS
0.30
xmax
5.5 mm
SPL1W
90 dB
Bl/√RE
4.56
Pmax
400 W
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6″Woofer
fS
65 Hz
SD
133 cm²
60 - 6000 Hz
QTS
0.27
xmax
5.6 mm
SPL1W
91 dB
Bl/√RE
4.78
Pmax
400 W