Beyma 21LEX1600Nd
Subwoofer
21″ / 540 mm
Nominal diameter
30 Hz
Resonance
0.29
Q factor
96 dB
Sensitivity
± 14 mm
Linear excursion
3200 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
95.6
dB
Frequency response
30 - 1000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
30.0
Hz
Mechanical quality factor
QMS
8.60
Electrical quality factor
QES
0.30
Total quality factor
QTS
0.29
Large signal parameters
Maximum linear excursion
xmax
14.0
mm
Maximum excursion before damage
xlim
65.0
mm
Air volume displaced at xmax
VD
2428
cm³
Power handling
P
1600
W
Program power
Pmax
3200
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.4
Ω
Inductance (1kHz)
LE
4.7
mH
VC Diameter
102
mm
Winding height
HVC
34.5
mm
Magnet
Force factor
Bl
36.6
N/A
Motor constant
Bl/√RE
15.8
N/√W
Air gap height
HAG
14
mm
Diaphragm
Effective diameter
470
mm
Effective area
SD
1734
cm²
Moving mass
MMS
393
g
Moving mass (without air load)
MMD
343.3
g
Suspensions
Stiffness
KMS
13.89
N/mm
Compliance
CMS
72
µm/N
Equivalent volume to the compliance
VAS
305
L
Mechanical resistance
RMS
8.6
N·s/m
Dimensions
Nominal diameter
21
″
540
mm
Overall diameter
545
mm
Baffle cutout diameter
492
mm
Overall depth
268
mm
Volume occupied by the driver (estimated)
8.8
L
Net weight
11.8
kg
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fS
30 Hz
SD
1734 cm²
30 - 1000 Hz
QTS
0.28
xmax
13.0 mm
SPL1W
96 dB
Bl/√RE
16
Pmax
3200 W
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fS
31 Hz
SD
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25 - 1500 Hz
QTS
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xmax
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SPL1W
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Bl/√RE
14
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fS
30 Hz
SD
1188 cm²
31 - 200 Hz
QTS
0.34
xmax
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SPL1W
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Bl/√RE
11
Pmax
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