Fostex FE108E User Manual
Features
• HP (Hyperbolic Paraboloid)
shell diaphragm
• ‘ES cone’ paper made of ba-
nana plant’s fiber
• UDR tangiential edge / damper
•ø 90mm large ferrite magnet
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
400 0.882
1,200 2.646
mm / in
100 4
mm / in
20 0.8
Cast
Ω
8
kHz
23
dB/W(m)
90
W
8
W
24
Ferrite
g / lb
g / lb
g / lb
FULL RANGE SPEAKER UNIT
FE108E
Frequency Response / Impedance
110
100
90
80
70
60
50
(dB)
20 50 100 200 500
Hz
1k
2k 5k
10k
20k 40k
16
8
4
a :
D :
Sd :
Zn :
Fs :
Re :
Le :
Qms :
Qes :
Qts :
Mms :
BL :
Vas :
Xmax :
Eff/η0 :
Cms :
EBP :
40
69.2
0.005
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
mm
mm
m
8
Ω
Hz
Ω
mH
g
Telsa/m
L
mm
%
mm/N
Dimensions & Mounting Information
2
8-ø5 hole
ø115
+TERMINAL
RED MARKING
Overall Diameter :
Baffle Hole Diameter
:
Depth :
ø128
ø99
ø90
mm / in
128 5.1
mm / in
102 4.1
mm / in
65 2.6
7.5
29.5
(65)
27
15
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