History change record, Speaker, Change items – BeStar BMS40-12-100H5.2 LF User Manual
Page 10: Version no, Approved drawn, Date
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Change Items
5. History change record
E
F
version
No.
G
A
Before
H
6
5
E
F
Approved
Drawn
After
06/9/8
郭敏
Date
G
4
3
2
1
H
06/9/8
付 静
付 静
程久生
莫丽丽
B
06/11/03
程久生
莫丽丽
BMS40-12-100H5.2 LF
BMS40-12-100H5.2 LF
add reliability test
SPL :85-93 dB,use the
customer test circuit
SPL :93+/-3 dB,8V,0.3m,
750Hz
莫丽丽
C
06/12/08
程久生
莫丽丽
add Chemical resistance
2.3
±0.3
2.1
±0.1
5.2
±0.3
5
±0.2
D
07/03/06
程久生
莫丽丽
DC resistance (20
°C)
100
± 15%Ω
Coil resistance
92.5
± 10% Ω
2.1
±0.1
2.2
±0.2
DRG NO: BS/TES01.644D
朱成兴
D
07/03/06
07/03/06
5.0
±0.2
5.0
±0.3
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