18″ / 460 mm
Nominal diameter
34 Hz
Resonance
0.35
Q factor
95 dB
Sensitivity
± 9 mm
Linear excursion
2400 W
Program Power
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Available on (affiliate link)
Parts Express
$$$
Specifications
Sensitivity (1w, 1m, infinite baffle)
SPL1W
95.1
dB
Frequency response
35 - 1000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
34.0
Hz
Mechanical quality factor
QMS
7.20
Electrical quality factor
QES
0.37
Total quality factor
QTS
0.35
Large signal parameters
Maximum linear excursion
xmax
9.0
mm
Air volume displaced at xmax
VD
1089
cm³
Power handling
P
1200
W
Program power
Pmax
2400
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.1
Ω
Inductance (1kHz)
LE
1.6
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
25.5
N/A
Motor constant
Bl/√RE
11.3
N/√W
Air gap height
HAG
12
mm
Material
Ferrite
Diaphragm
Effective diameter
393
mm
Effective area
SD
1210
cm²
Moving mass
MMS
209
g
Moving mass (without air load)
MMD
179.8
g
Material
Waterproof Both Sides
Suspensions
Stiffness
KMS
10.1
N/mm
Compliance
CMS
99
µm/N
Equivalent volume to the compliance
VAS
212
L
Mechanical resistance
RMS
6.2
N·s/m
Spider material
Silicone
Dimensions
Nominal diameter
18
″
460
mm
Overall diameter
460
mm
Baffle cutout diameter
422
mm
Overall depth
209
mm
Flange thickness
16
mm
Mounting depth
193
mm
Volume occupied by the driver
10.5
L
Net weight
12.7
kg
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QSpeakers
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SpeakerbenchSimilar subwoofers to B&C Speaker 18TBX100
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18″Subwoofer
fS
34 Hz
SD
1225 cm²
30 - 2500 Hz
QTS
0.36
xmax
10.0 mm
SPL1W
95 dB
Bl/√RE
11
Pmax
2600 W
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18″Subwoofer
fS
37 Hz
SD
1210 cm²
37 - 2000 Hz
QTS
0.36
xmax
8.0 mm
SPL1W
95 dB
Bl/√RE
11
Pmax
2000 W
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18″Subwoofer
fS
33 Hz
SD
1131 cm²
35 - 1000 Hz
QTS
0.34
xmax
7.5 mm
SPL1W
95 dB
Bl/√RE
10
Pmax
2000 W