Fostex FE83En
Full-range
3″ / 80 mm
Nominal diameter
165 Hz
Resonance
0.84
Q factor
87 dB
Sensitivity
± 0.15 mm
Linear excursion
7 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
87.2
dB
Frequency response
165 - 30000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
165
Hz
Mechanical quality factor
QMS
4.06
Electrical quality factor
QES
1.06
Total quality factor
QTS
0.84
Large signal parameters
Maximum linear excursion
xmax
0.15
mm
Air volume displaced at xmax
VD
0.4
cm³
Power handling
P
5
W
Program power
Pmax
7
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
7.5
Ω
Inductance (1kHz)
LE
0.03
mH
VC Diameter
16
mm
Magnet
Force factor
Bl
3.35
N/A
Motor constant
Bl/√RE
1.22
N/√W
Weight
0.14
kg
Material
Ferrite
Diaphragm
Effective diameter
60
mm
Effective area
SD
28
cm²
Moving mass
MMS
1.5
g
Moving mass (without air load)
MMD
1.4
g
Suspensions
Stiffness
KMS
1.61
N/mm
Compliance
CMS
622
µm/N
Equivalent volume to the compliance
VAS
0.7
L
Mechanical resistance
RMS
0.39
N·s/m
Dimensions
Nominal diameter
3
″
80
mm
Overall diameter
83
mm
Baffle cutout diameter
73
mm
Overall depth
44
mm
Volume occupied by the driver (estimated)
0.12
L
Net weight
0.35
kg
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SpeakerbenchSimilar speaker drivers to Fostex FE83En
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3 x 3″Full-range
fS
150 Hz
SD
31 cm²
150 - 15000 Hz
QTS
0.73
xmax
1.5 mm
SPL1W
87 dB
Bl/√RE
1.25
Pmax
10 W
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3″Full-range
fS
170 Hz
SD
33 cm²
100 - 20000 Hz
QTS
0.95
xmax
2.7 mm
SPL1W
87 dB
Bl/√RE
1.46
Pmax
50 W
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2 x 3″Full-range
fS
150 Hz
SD
29 cm²
150 - 20000 Hz
QTS
0.68
xmax
0.9 mm
SPL1W
87 dB
Bl/√RE
1.61
Pmax
25 W