Fostex FE108E Sigma User manual
Features
Frequency Response / Impedance
Dimensions & Mounting Information
Overall Diameter :
Baffle Hole Diameter
:
Depth :
mm / in
mm / in
mm / in
Specifications
&
Thiele/Small Parameters
Size :
Voice Coil Diameter
:
Cast / Stamped :
Impedance :
Reproduction Frequency Response
:fs -
Sound Pressure Level
:
Rated Input :
Music Power :
Magnet Material :
Magnet Weight
(main) :
(cancel) :
Net Weight
mm / in
mm / in
Ω
kHz
dB/W(m)
W
W
g / lb
g / lb
g / lb
a :
D :
Sd :
Zn :
Fs :
Re :
Le :
Qms :
Qes :
Qts :
Mms :
BL :
Vas :
Xmax :
Eff/η0 :
Cms :
EBP :
mm
mm
m2
Ω
Hz
Ω
mH
g
Telsa/m
L
mm
%
mm/N
FULL RANGE SPEAKER UNIT
FE108E
100 4
20 0.8
Cast
8
23
90
8
24
Ferrite
400 0.882
1,200 2.646
128 5.1
102 4.1
65 2.6
•HP (Hyperbolic Paraboloid)
shell diaphragm
•‘ES cone’ paper made of ba-
nana plant’s fiber
•UDR tangiential edge / damper
•ø90mm large ferrite magnet
40
69.2
0.005
8
77
6.8
0.038
7.79
0.32
0.3
2.7
5.2
5.7
0.28
0.78
1.59
240.63
20 50 100 200 500 1k 2k 5k 10k 20k 40k
50
60
70
80
90
100
110
(dB)
Hz
16
8
4
ø128
ø99
ø90
29.5 7.5
(65)
15
27
RED MARKING
+TERMINAL
ø115
8-ø5 hole
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