Oberton 18XB700
Woofer
18″ / 461 mm
Nominal diameter
36 Hz
Resonance
0.3
Q factor
96 dB
Sensitivity
± 9 mm
Linear excursion
2000 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
95.6
dB
Frequency response
35 - 1000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
36.1
Hz
Mechanical quality factor
QMS
9.26
Electrical quality factor
QES
0.31
Total quality factor
QTS
0.30
Large signal parameters
Maximum linear excursion
xmax
9.0
mm
Air volume displaced at xmax
VD
999
cm³
Power handling
P
1000
W
Program power
Pmax
2000
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.2
Ω
Inductance (1kHz)
LE
1.83
mH
VC Diameter
100
mm
Winding height
HVC
25
mm
Winding material
Copper
Former material
Glass fiber
Magnet
Flux density
B
0.97
T
Force factor
Bl
26.1
N/A
Motor constant
Bl/√RE
11.5
N/√W
Air gap height
HAG
14
mm
Material
Ferrite
Diaphragm
Effective diameter
376
mm
Effective area
SD
1110
cm²
Moving mass
MMS
182.6
g
Moving mass (without air load)
MMD
155.9
g
Material
Kevlar paper
Suspensions
Stiffness
KMS
9.4
N/mm
Compliance
CMS
106
µm/N
Equivalent volume to the compliance
VAS
183
L
Mechanical resistance
RMS
4.47
N·s/m
Dimensions
Nominal diameter
18
″
461
mm
Overall diameter
461
mm
Baffle cutout diameter
417
mm
Overall depth
203
mm
Volume occupied by the driver (estimated)
6.9
L
Net weight
12.55
kg
Frame material
Die cast aluminium
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SpeakerbenchSimilar subwoofers to Oberton 18XB700
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18″Subwoofer
fS
35 Hz
SD
1158 cm²
35 - 1000 Hz
QTS
0.29
xmax
12.0 mm
SPL1W
96 dB
Bl/√RE
12
Pmax
2600 W
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18″Subwoofer
fS
35 Hz
SD
1212 cm²
35 - 1600 Hz
QTS
0.30
xmax
9.5 mm
SPL1W
96 dB
Bl/√RE
12
Pmax
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18″Subwoofer
fS
35 Hz
SD
1212 cm²
35 - 1600 Hz
QTS
0.32
xmax
12.5 mm
SPL1W
95 dB
Bl/√RE
13
Pmax
2400 W