FaitalPRO 4FE42 4Ω
4Ω
8ΩFull-range
4″ / 100 mm
Nominal diameter
110 Hz
Resonance
0.38
Q factor
90 dB
Sensitivity
± 2.83 mm
Linear excursion
80 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
90.4
dB
Frequency response
100 - 20000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
110
Hz
Mechanical quality factor
QMS
6.60
Electrical quality factor
QES
0.40
Total quality factor
QTS
0.38
Large signal parameters
Maximum linear excursion
xmax
2.83
mm
Maximum excursion before damage
xlim
5.1
mm
Air volume displaced at xmax
VD
14
cm³
Power handling
P
40
W
Program power
Pmax
80
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
3.5
Ω
Inductance (1kHz)
LE
0.05
mH
VC Diameter
25
mm
Winding height
HVC
7
mm
Winding material
Aluminium
Former material
Kapton
Magnet
Flux density
B
1.4
T
Force factor
Bl
5.4
N/A
Motor constant
Bl/√RE
2.89
N/√W
Air gap height
HAG
4
mm
Material
Neodymium Ring
Diaphragm
Effective diameter
81
mm
Effective area
SD
51
cm²
Moving mass
MMS
4.3
g
Moving mass (without air load)
MMD
4
g
Suspensions
Stiffness
KMS
2.04
N/mm
Compliance
CMS
490
µm/N
Equivalent volume to the compliance
VAS
1.8
L
Mechanical resistance
RMS
0.5
N·s/m
Dimensions
Nominal diameter
4
″
100
mm
Overall size
101 x 130
mm
Baffle cutout diameter
92
mm
Overall depth
54
mm
Flange thickness
7
mm
Mounting depth
47
mm
Volume occupied by the driver
0.105
L
Net weight
0.39
kg
Frame material
Steel
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SpeakerbenchSimilar speaker drivers to FaitalPRO 4FE42 4Ω
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4″Woofer
fS
104 Hz
SD
54 cm²
100 - 12000 Hz
QTS
0.30
xmax
4.0 mm
SPL1W
89 dB
Bl/√RE
3.51
Pmax
80 W
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