LaVoce SAF214.50
Subwoofer
21″ / 530 mm
Nominal diameter
33 Hz
Resonance
0.49
Q factor
94 dB
Sensitivity
± 12.5 mm
Linear excursion
4000 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
93.6
dB
Frequency response
30 - 1000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
33.0
Hz
Mechanical quality factor
QMS
8.02
Electrical quality factor
QES
0.52
Total quality factor
QTS
0.49
Large signal parameters
Maximum linear excursion
xmax
12.5
mm
Maximum excursion before damage
xlim
21.8
mm
Air volume displaced at xmax
VD
2078
cm³
Power handling
P
2000
W
Program power
Pmax
4000
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.7
Ω
Inductance (1kHz)
LE
2.87
mH
VC Diameter
115
mm
Winding height
HVC
32.5
mm
Winding material
Copper
Former material
Glass Fiber
Magnet
Force factor
Bl
29.2
N/A
Motor constant
Bl/√RE
12.2
N/√W
Air gap height
HAG
15
mm
Diameter
240
mm
Height
30
mm
Material
Ferrite
Diaphragm
Effective diameter
460
mm
Effective area
SD
1662
cm²
Moving mass
MMS
378
g
Moving mass (without air load)
MMD
331.7
g
Material
Water Resistant Treated Paper + Water Proof Front Side Treatment
Suspensions
Stiffness
KMS
16.13
N/mm
Compliance
CMS
62
µm/N
Equivalent volume to the compliance
VAS
242
L
Mechanical resistance
RMS
9.77
N·s/m
Surround material
Polycotton
Dimensions
Nominal diameter
21
″
530
mm
Volume occupied by the driver
11.85
L
Net weight
17.8
kg
Frame material
Aluminium
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SD
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