18″ / 462 mm
Nominal diameter
34 Hz
Resonance
0.36
Q factor
95 dB
Sensitivity
± 10 mm
Linear excursion
2600 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
95.0
dB
Frequency response
30 - 2500
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
34.0
Hz
Mechanical quality factor
QMS
6.30
Electrical quality factor
QES
0.38
Total quality factor
QTS
0.36
Large signal parameters
Maximum linear excursion
xmax
10.0
mm
Air volume displaced at xmax
VD
1225
cm³
Power handling
P
1300
W
Program power
Pmax
2600
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.2
Ω
Inductance (1kHz)
LE
1.5
mH
VC Diameter
100
mm
Magnet
Force factor
Bl
25.5
N/A
Motor constant
Bl/√RE
11.2
N/√W
Diaphragm
Effective diameter
395
mm
Effective area
SD
1225
cm²
Moving mass
MMS
210
g
Moving mass (without air load)
MMD
180.3
g
Suspensions
Stiffness
KMS
9.62
N/mm
Compliance
CMS
104
µm/N
Equivalent volume to the compliance
VAS
196
L
Mechanical resistance
RMS
7.12
N·s/m
Dimensions
Nominal diameter
18
″
462
mm
Overall diameter
462
mm
Baffle cutout diameter
422
mm
Overall depth
215
mm
Flange thickness
24
mm
Mounting depth
191
mm
Volume occupied by the driver (estimated)
7.1
L
Net weight
12.4
kg
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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
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18″Subwoofer
fS
34 Hz
SD
1210 cm²
35 - 1000 Hz
QTS
0.35
xmax
9.0 mm
SPL1W
95 dB
Bl/√RE
11
Pmax
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18″Subwoofer
fS
35 Hz
SD
1212 cm²
35 - 1600 Hz
QTS
0.37
xmax
12.5 mm
SPL1W
95 dB
Bl/√RE
11
Pmax
2400 W