LaVoce FSF030.70

Full-range

3″ / 70 mm
Nominal diameter
120 Hz
Resonance
0.73
Q factor
87 dB
Sensitivity
± 2.1 mm
Linear excursion
60 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
86.7
dB
Frequency response
120 - 21000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
120
Hz
Mechanical quality factor
QMS
4.04
Electrical quality factor
QES
0.88
Total quality factor
QTS
0.73

Large signal parameters

Maximum linear excursion
xmax
2.1
mm
Maximum excursion before damage
xlim
3.1
mm
Air volume displaced at xmax
VD
7.0
cm³
Power handling
P
30
W
Program power
Pmax
60
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
6.4
Ω
Inductance (1kHz)
LE
0.06
mH
VC Diameter
20
mm
Winding height
HVC
6.2
mm
Winding material
Copper Clad Aluminium
Former material
Glass Fiber

Magnet

Force factor
Bl
3.29
N/A
Motor constant
Bl/√RE
1.3
N/√W
Air gap height
HAG
4
mm
Diameter
70
mm
Height
15
mm
Material
Ferrite

Diaphragm

Effective diameter
65
mm
Effective area
SD
33
cm²
Moving mass
MMS
2
g
Moving mass (without air load)
MMD
1.8
g
Material
Water Resistant Treated Paper

Suspensions

Stiffness
KMS
1.12
N/mm
Compliance
CMS
890
µm/N
Equivalent volume to the compliance
VAS
1.39
L
Mechanical resistance
RMS
0.37
N·s/m
Surround material
Rubber

Dimensions

Nominal diameter
3
70
mm
Volume occupied by the driver
0.13
L
Net weight
0.5
kg
Frame material
Steel
LaVoce FSF030.70 SPL & Impedance
LaVoce FSF030.70 Dimensions

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