Oberton 18NXB1600
Woofer
18″ / 461 mm
Nominal diameter
32 Hz
Resonance
0.3
Q factor
94 dB
Sensitivity
± 13.5 mm
Linear excursion
3200 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
94.1
dB
Frequency response
30 - 1000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
32.4
Hz
Mechanical quality factor
QMS
5.11
Electrical quality factor
QES
0.33
Total quality factor
QTS
0.30
Large signal parameters
Maximum linear excursion
xmax
13.5
mm
Air volume displaced at xmax
VD
1563
cm³
Power handling
P
1600
W
Program power
Pmax
3200
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.3
Ω
Inductance (1kHz)
LE
1.2
mH
VC Diameter
115
mm
Winding height
HVC
34
mm
Winding material
Copper
Former material
Glass fiber
Magnet
Flux density
B
1.1
T
Force factor
Bl
29.58
N/A
Motor constant
Bl/√RE
12.8
N/√W
Air gap height
HAG
14
mm
Material
Neodymium
Diaphragm
Effective diameter
384
mm
Effective area
SD
1158
cm²
Moving mass
MMS
261.6
g
Moving mass (without air load)
MMD
233.6
g
Material
Kevlar paper
Suspensions
Stiffness
KMS
10.82
N/mm
Compliance
CMS
92
µm/N
Equivalent volume to the compliance
VAS
173
L
Mechanical resistance
RMS
10.41
N·s/m
Dimensions
Nominal diameter
18
″
461
mm
Overall diameter
461
mm
Baffle cutout diameter
417
mm
Overall depth
224
mm
Volume occupied by the driver (estimated)
7.0
L
Net weight
11.7
kg
Frame material
Die cast aluminium
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QSpeakers
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SpeakerbenchSimilar subwoofers to Oberton 18NXB1600
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fS
32 Hz
SD
1225 cm²
35 - 1000 Hz
QTS
0.30
xmax
17.5 mm
SPL1W
94 dB
Bl/√RE
14
Pmax
4000 W
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RCF LF18X4518 Ω
18″Subwoofer
fS
30 Hz
SD
1200 cm²
30 - 1000 Hz
QTS
0.28
xmax
14.0 mm
SPL1W
95 dB
Bl/√RE
13
Pmax
3600 W
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18″Subwoofer
fS
32 Hz
SD
1156 cm²
30 - 1800 Hz
QTS
0.32
xmax
17.5 mm
SPL1W
93 dB
Bl/√RE
13
Pmax
4000 W