VISATON FR 8 WP - 4 Ohm
Full-range
3.3″ / 80 mm
Nominal diameter
158 Hz
Resonance
0.88
Q factor
84 dB
Sensitivity
± 0.5 mm
Linear excursion
25 W
Program Power
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Specifications
Sensitivity (1w, 1m, infinite baffle)
SPL1W
83.9
dB
Frequency response
100 - 20000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
158
Hz
Mechanical quality factor
QMS
2.62
Electrical quality factor
QES
1.33
Total quality factor
QTS
0.88
Large signal parameters
Maximum linear excursion
xmax
0.5
mm
Maximum excursion before damage
xlim
3.0
mm
Air volume displaced at xmax
VD
1.5
cm³
Power handling
P
15
W
Program power
Pmax
25
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
4.1
Ω
Inductance (1kHz)
LE
0.3
mH
VC Diameter
20
mm
Winding height
HVC
4
mm
Magnet
Flux density
B
1.0
T
Force factor
Bl
2.8
N/A
Motor constant
Bl/√RE
1.38
N/√W
Air gap height
HAG
3
mm
Diaphragm
Effective diameter
62
mm
Effective area
SD
30
cm²
Moving mass
MMS
2.9
g
Moving mass (without air load)
MMD
2.8
g
Material
Waterproof
Suspensions
Stiffness
KMS
3.2
N/mm
Compliance
CMS
313
µm/N
Equivalent volume to the compliance
VAS
0.4
L
Mechanical resistance
RMS
1.1
N·s/m
Dimensions
Nominal diameter
3.3
″
80
mm
Baffle cutout diameter
74
mm
Net weight
0.23
kg
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SD
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SD
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