Fostex FE206E.pdf - Solen

FULL RANGE SPEAKER UNIT
FE206E
Features
• ‘ES cone’ paper made of banana
plant’s fiber
• ø 110mm large ferrite magnet
• Newly designed center cap
Specifications
&
Thiele/Small Parameters
Size : 200 mm / 8
Voice Coil Diameter
: 35 mm / 1.4
Cast / Stamped : Stamped
Impedance : 8 Ω
Min. Frequency Response
: 40 Hz
Production Frequency Response
:f0 -
Sound Pressure Level
:
Rated Input :
Music Power :
Magnet Material :
Magnet Weight
(main) :
(cancel) : n/a
Net Weight
a :
D :
Sd :
Zn :
Fs :
Re :
Le :
Qms :
Qes :
Qts :
Mms :
BL :
Vas :
Xmax :
Eff/η0 :
Cms :
20
96
30
kHz
dB/W(m)
W
W
90
Ferrite
81mm
162mm
0.02061m 2
8Ω
39Hz
6.69Ω
n/amH
3.73
0.18
0.18
15.35g
11.8Telsa/m
54.53L
1.5mm
1.73W%
0.0009mm/N
in
in
1,067 g / 2.352 lb
g / n/a lb
3,350 g / 7.385 lb
Frequency Response / Impedance
110
100
90
80
70
60
50
(dB)
4
20Hz
50 100 200 500 1k 2k 5k 10k 20k 40k
Dimensions & Mounting Information
R110
ø182
ø145
Overall Diameter :
Baffle Hole Diameter
:
Depth :
208
53.5
87.5
208 mm / 8 in
185 mm / 7 in
87.5 mm / 3 in
Ω
16
8

RECOMMENDED ENCLOSURE
FE206E
Recommended Back Loaded Horn Type Enclosure
• This example shows a ‘back loaded horn’ type enclosure for
FE206E.
• FE206E’s magnetic cir-
100
cuit with ø146mm large 90
80
70
ferrite magnet provides
sharper resonance
60
50
(dB)
Hz
makes the unit suitable
for a back loaded horn type enclosure.
• 21mm thick plywood is used for main section
and side panels to ensure a strong enclosure.
• Two way system using super tweeter
T90A is also recommended.
110
20 50 100 200 500 1000 2k 5k 10k 20k
FE206E
Capacitor 0.68 - 0.33µF
T90A
900
21 21
145
350
392
300
200
( 22 )
35 36
522
440
100
28
29
4
50
220
42
8
12
9
50
3
125 150
408
160
450
313
250
40
47
290
74 52 87 (111)
11
255
100
50
219
6
50
5
20
21
22
7
10
275
120
23
100 100 100
25
24
19
26
30 31 33
32
42
1
2
50
27
13
100 100 100 100 100 100 100
15
16
17
18
14

313
80 80
350 350
900
50
80
290
290
2-ø20
408
31 33
19
858
26
12
450 350 80
450
450
30
32
36
35
392 392
*Italic font means part number.
4-50
4-100
150
200
522
300
80
219
160
2-ø8
27
2
74
100 220
350
ø230 ø185
11
9
24 20 25 23 21 22
29
4
145
28
145
40
219
250
255
275
290
440
350
14
1
6
7 5
10
3
8
780
150
18
13
780
50
100
150
17
150
16
15
150
Sound
Absorbents
• This example has sufficient internal volume . However, if you prefer 'tighter' sound reproduction,
you can reduce airspace using sand or other fill material.
Sands
• Placing thin sound absorbent material as shown enable reduction of peaks & dips around 150 to
400Hz band width. However, it may reduce transient response. You should adjust to taste.
Sound
Absorbents
Sands
• In order to avoid unwanted mid/high frequency dispersion from the horn, we recommend
damping the enclosure with fill and sound absorption material.
• FE206E designed for use in a back loaded horn type
Bass Reflex Type Enclosure
enclosure and it is generally unsuitable for bass reflex
unit : mm
because of its over damping sound characteristics.
However, it is possible to use the FE166E in a bass
reflex enclosure as shown.
ø185
• This example is a narrow and tall style bass reflex
type enclosure. Internal volume of 45 liters tuned
to approximately 50Hz (Fb).
180
180
786
600
ø80
750
• Low frequency response from around 120Hz is gently
400
75
damped with a controlled peak at 50 - 60Hz.
200
240
276
264
300