Fostex FE207E.pdf - audio alchemy
Fostex FE207E.pdf - audio alchemy
Fostex FE207E.pdf - audio alchemy
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Features<br />
• ‘ES cone’ paper made of banana<br />
plant’s fiber<br />
• Ferrite magnet<br />
• Repulsion type magnet<br />
shielded circuit<br />
• Newly designed center cap<br />
LOW LEAKAGE FLUX TYPE FULL RANGE<br />
SPEAKER UNIT<br />
<strong>FE207E</strong><br />
Specifications<br />
&<br />
Thiele/Small Parameters<br />
Size : 200 mm / 8<br />
Voice Coil Diameter<br />
: 35 mm / 1.4<br />
Cast / Stamped : Stamped<br />
Impedance : 8 Ω<br />
Min. Frequency Response<br />
: 40 Hz<br />
Production Frequency Response<br />
:f0 -<br />
Sound Pressure Level<br />
:<br />
Rated Input :<br />
Music Power :<br />
Magnet Material :<br />
Magnet Weight<br />
(main) :<br />
(cancel) :<br />
Net Weight<br />
a :<br />
D :<br />
Sd :<br />
Zn :<br />
Fs :<br />
Re :<br />
Le :<br />
Qms :<br />
Qes :<br />
Qts :<br />
Mms :<br />
BL :<br />
Vas :<br />
Xmax :<br />
Eff/η0 :<br />
Cms :<br />
20<br />
95<br />
30<br />
90<br />
kHz<br />
dB/W(m)<br />
W<br />
W<br />
Ferrite<br />
81mm<br />
162mm<br />
0.02061m 2<br />
8Ω<br />
39Hz<br />
6.73Ω<br />
n/amH<br />
3.86<br />
0.28<br />
0.26<br />
15.02g<br />
9.41Telsa/m<br />
56.25L<br />
1.5mm<br />
1.17W%<br />
0.0009mm/N<br />
in<br />
in<br />
337.0 g / 0.743 lb<br />
329.9 g / 0.727 lb<br />
2,650 g / 5.842 lb<br />
Frequency Response / Impedance<br />
110<br />
100<br />
90<br />
80<br />
70<br />
60<br />
50<br />
8<br />
(dB)<br />
4<br />
20 Hz 50 100 200 500 1k 2k 5k 10k 20k 40k<br />
Dimensions & Mounting Information<br />
R110<br />
208<br />
Overall Diameter :<br />
Baffle Hole Diameter<br />
:<br />
Depth :<br />
ø118.5<br />
ø182<br />
54.5<br />
104<br />
208 mm / 8 in<br />
185 mm / 7 in<br />
104 mm / 4 in<br />
Ω<br />
16
<strong>FE207E</strong><br />
Recommended D ouble Bass R eflex Type E nclosure<br />
900<br />
858<br />
¿185<br />
20<br />
(173)<br />
110<br />
292<br />
250<br />
110<br />
152<br />
125<br />
97<br />
245 (321)<br />
250<br />
110<br />
3 4<br />
1<br />
19<br />
17<br />
18<br />
2<br />
15<br />
5<br />
140<br />
320<br />
313<br />
6 8<br />
16<br />
7<br />
190<br />
250<br />
60<br />
21<br />
858<br />
30 205 50 (288) 50 205 30<br />
2-21<br />
90 190<br />
9<br />
13<br />
14<br />
25<br />
unit : mm<br />
11<br />
10<br />
2- ¿13<br />
12<br />
unit : mm<br />
858<br />
858<br />
¥ This is an example of a <strong>FE207E</strong> double bass<br />
reflex type enclosure.<br />
¥ The multi bass reflex ducts (ports) reproduce<br />
lower frequency.<br />
¥ Avoid too low a tuning frequency to maintain<br />
good power handling.<br />
250 250 320 30<br />
9 1 0<br />
313 313<br />
¿185<br />
19 20<br />
900 900<br />
17 18<br />
110<br />
250<br />
190<br />
125 97 100<br />
15<br />
16<br />
2-90<br />
2<br />
152 140 110 110 60<br />
2-¿13<br />
858 858<br />
1<br />
6 5 7 8<br />
2-50 2-30<br />
13 14 1112<br />
21<br />
190<br />
4<br />
90<br />
3<br />
110 110<br />
Frequency Response<br />
110<br />
100<br />
90<br />
80<br />
70<br />
60<br />
50<br />
(dB)<br />
20Hz<br />
50 100 200 500 1000 2k 5k 10k 20k<br />
¥Substantial low frequency response<br />
in the 60 to 80Hz region.<br />
<strong>FE207E</strong><br />
¥ Two way system<br />
using super tweeter<br />
Capacitor 0.68 - 0.33∝F<br />
T90A<br />
is also recommended.<br />
¥ 21mm thick plywood was used for the tested<br />
enclosure.<br />
Recommended S tandard Bass R eflex Type E nclosure<br />
Example of<br />
<strong>FE207E</strong> standard<br />
bass reflex type enclosure.<br />
This enclosure<br />
is 35 liters<br />
volume. Various<br />
dimensions<br />
can be tried<br />
as long as internal<br />
volume remains<br />
the same.<br />
260<br />
unit : mm<br />
300<br />
¿185<br />
¿80<br />
80<br />
140<br />
450<br />
180
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