Beyma 18QLEX1600Fe
Subwoofer
18″ / 460 mm
Nominal diameter
30 Hz
Resonance
0.23
Q factor
95 dB
Sensitivity
± 13 mm
Linear excursion
3200 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
94.6
dB
Frequency response
30 - 1000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
30.0
Hz
Mechanical quality factor
QMS
6.50
Electrical quality factor
QES
0.24
Total quality factor
QTS
0.23
Large signal parameters
Maximum linear excursion
xmax
13.0
mm
Maximum excursion before damage
xlim
60.0
mm
Air volume displaced at xmax
VD
1632
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
3.9
mH
VC Diameter
102
mm
Winding height
HVC
32
mm
Magnet
Force factor
Bl
36.4
N/A
Motor constant
Bl/√RE
15.8
N/√W
Air gap height
HAG
15
mm
Diaphragm
Effective diameter
400
mm
Effective area
SD
1255
cm²
Moving mass
MMS
323
g
Moving mass (without air load)
MMD
292.5
g
Suspensions
Stiffness
KMS
11.36
N/mm
Compliance
CMS
88
µm/N
Equivalent volume to the compliance
VAS
195
L
Mechanical resistance
RMS
9.3
N·s/m
Dimensions
Nominal diameter
18
″
460
mm
Overall diameter
462
mm
Baffle cutout diameter
426
mm
Overall depth
233
mm
Volume occupied by the driver (estimated)
8.3
L
Net weight
14.6
kg
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SD
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SD
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xmax
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