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
Driver
Port
Combined
Frequency response
Hz
Impedance
Ω
Impedance Phase
°
Excursion
mm
Velocity
m/s
SPL
dB
Acoustical Phase
°
Group Delay
ms
Transient response
ms
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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
VISATON FR 8 WP - 4 Ohm SPL & Impedance
VISATON FR 8 WP - 4 Ohm Directivity
VISATON FR 8 WP - 4 Ohm Dimensions

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fS
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SD
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