VISATON FR 8 JS - 8 Ohm
Full-range
3.3″ / 80 mm
Nominal diameter
130 Hz
Resonance
1.24
Q factor
85 dB
Sensitivity
± 1 mm
Linear excursion
15 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
84.6
dB
Frequency response
80 - 20000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
130
Hz
Mechanical quality factor
QMS
4.30
Electrical quality factor
QES
1.74
Total quality factor
QTS
1.24
Large signal parameters
Maximum linear excursion
xmax
1.0
mm
Maximum excursion before damage
xlim
2.0
mm
Air volume displaced at xmax
VD
3.0
cm³
Power handling
P
10
W
Program power
Pmax
15
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
7.2
Ω
Inductance (1kHz)
LE
0.6
mH
VC Diameter
15
mm
Winding height
HVC
5
mm
Magnet
Flux density
B
1.4
T
Force factor
Bl
2.77
N/A
Motor constant
Bl/√RE
1.03
N/√W
Air gap height
HAG
3
mm
Diaphragm
Effective diameter
62
mm
Effective area
SD
30
cm²
Moving mass
MMS
2.3
g
Moving mass (without air load)
MMD
2.2
g
Material
Waterproof
Suspensions
Stiffness
KMS
1.52
N/mm
Compliance
CMS
658
µm/N
Equivalent volume to the compliance
VAS
0.84
L
Mechanical resistance
RMS
0.44
N·s/m
Dimensions
Nominal diameter
3.3
″
80
mm
Baffle cutout diameter
75
mm
Net weight
0.24
kg
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fS
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SD
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QTS
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SPL1W
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Bl/√RE
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3.3″Full-range
fS
120 Hz
SD
31 cm²
100 - 20000 Hz
QTS
1.04
xmax
0.5 mm
SPL1W
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Bl/√RE
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fS
130 Hz
SD
36 cm²
100 - 20000 Hz
QTS
1.10
xmax
3.9 mm
SPL1W
85 dB
Bl/√RE
1.23
Pmax
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