18″ / 460 mm
Nominal diameter
35 Hz
Resonance
0.37
Q factor
95 dB
Sensitivity
± 10 mm
Linear excursion
2400 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
94.7
dB
Frequency response
35 - 1000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
35.0
Hz
Mechanical quality factor
QMS
7.00
Electrical quality factor
QES
0.39
Total quality factor
QTS
0.37
Large signal parameters
Maximum linear excursion
xmax
10.0
mm
Air volume displaced at xmax
VD
1210
cm³
Power handling
P
1200
W
Program power
Pmax
2400
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
3.6
Ω
Inductance (1kHz)
LE
1.74
mH
VC Diameter
100
mm
Winding height
HVC
25
mm
Winding material
Copper
Former material
Glass Fibre
Magnet
Flux density
B
1.1
T
Force factor
Bl
22.0
N/A
Motor constant
Bl/√RE
11.6
N/√W
Air gap height
HAG
11
mm
Material
Neodymium Inside Slug
Diaphragm
Effective diameter
393
mm
Effective area
SD
1210
cm²
Moving mass
MMS
225
g
Moving mass (without air load)
MMD
195.8
g
Material
Waterproof Both Sides
Suspensions
Stiffness
KMS
11.49
N/mm
Compliance
CMS
87
µm/N
Equivalent volume to the compliance
VAS
192
L
Mechanical resistance
RMS
7.07
N·s/m
Spider material
Silicone
Dimensions
Nominal diameter
18
″
460
mm
Overall diameter
460
mm
Baffle cutout diameter
422
mm
Overall depth
208
mm
Flange thickness
14
mm
Mounting depth
194
mm
Volume occupied by the driver
8.5
L
Net weight
9.05
kg
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Export this driver to a simulation software:
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QSpeakers
SpeakerSim
MfbLabs
SpeakerbenchSimilar subwoofers to B&C Speaker 18NBX100
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18″Subwoofer
fS
35 Hz
SD
1210 cm²
35 - 1000 Hz
QTS
0.38
xmax
12.5 mm
SPL1W
94 dB
Bl/√RE
11
Pmax
3000 W
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18″Subwoofer
fS
35 Hz
SD
1210 cm²
35 - 1000 Hz
QTS
0.39
xmax
12.0 mm
SPL1W
94 dB
Bl/√RE
12
Pmax
3000 W
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18″Subwoofer
fS
36 Hz
SD
1134 cm²
35 - 2500 Hz
QTS
0.35
xmax
8.3 mm
SPL1W
95 dB
Bl/√RE
11
Pmax
2000 W