Page 1
博士达
FOR DYNAMIC SPEAKER
TOTAL PAGE
SPECIFICATION
06
www.be-star.com
RoHS
Customer
Date
Page
Approval:
1.Technical Terms
2.Frequency Response
3.Drawing
4.Reliability Test
5.Packing
6.History change record
30 Sep. 11
01 of 06
Model Name
Product No.Customer P/N
Issue No.
Issue Date
BLS57-2-25H25.5 LF
120623
BS/TES01.996A
11/09/30
Drawn by
汪凤声
Checked by
王 平
Approved by
张秀琴
Customer approved
BESTAR ELECTRONICS INDUSTRY CO.,LTD
No.199 HuangHe West Road.New district,ChangZhou,JiangSu Province,P.R.China
Tel: +86 519 88222567 Fax: +86 519 88222551
E-mail:wu@be-star.com http://www.be-star.com
Page 2
46 5 23 1
博士达
H
BLS57-2-25H25.5 LF
1.Technical Terms
G
F
E
No. Item Specifications
1. Size 57x25.5mm
2. Impedance at 1KHz 25±3.8 Ω
3. Resonance frequency 1400±200Hz
4. Operating frequency range fo...3500Hz
5. Rated input power 6W
6. Maximum input power 10W
7. Buzz & Rattle(at sine wave 6V) must be normal
8. SPL(0.1m/0.1W,at Fo) >115dB
9. Membrane PEI
10. Polarity Positive votage to(+)
H
G
F
E
the diaphragm move forward
11. Operating temperature -10...+80°C
12. Storage temperature -25...+85°C
D
2.Frequency Response
and shall not be used in whole or in part without its written content
This print and information there in are proprietary to Bestar Electronics Industry Co., Ltd.
120
(0.1m/0.1W at Fo >115dB)
115
C
110
105
100
95
90
B
85
80
100 1000500 10K 20K
D
C
B
Date:
Drawn by:
11/10/30
A
A
Rev.
汪凤声
DrawnDate
Note
Checked by:
Approved by:
www.be-star.com wu@be-star.com
6 5 4
11/10/30
汪凤声
王 平
张秀琴
BLS57-2-25H25.5 LF
Speaker
DRG NO: BS/TES01.996A
3 2 1
A
Page:2 of 6
Page 3
6 3 25 4 1
博士达
H
BLS57-2-25H25.5 LF
3.Drawing
G
F
E
H
G
F
E
D
and shall not be used in whole or in part without its written content
This print and information there in are proprietary to Bestar Electronics Industry Co., Ltd.
C
B
Date:
Drawn by:
11/10/30
A
A
REV.
Date
6
汪凤声
Drawn
5 4
Note
Checked by:
Approved by:
www.be-star.com wu@be-star.com
11/10/30
汪凤声
王 平
张秀琴
3 2
BLS57-2-25H25.5 LF
Speaker
DRG NO: BS/TES01.996A
Page:3 of 6
1
D
C
B
A
Page 4
56 4 23 1
博士达
H
H
BLS57-2-25H25.5 LF
4. Reliability Test
4.1 Load test
G
Input Power 6W,pink noise
Duration 48hrs
4.2 Heat test
Temperature +85± 2°C
Duration 48hrs
4.3 Cold test
F
Temperature -25± 3°C
Duration 48hrs
4.4 Temperature change( shock )
Low Temperature -25± 3°C
High Temperature +85± 2°C
E
Dwell time each temperature 30min
Transfer time from lower to upper temperature<10s
Cycles 100
4.5 Moisture Test
Tempeature +40± 2°C
Humidity 92± 2%(RH)
D
Duration 48hrs
4.6 Drop test
and shall not be used in whole or in part without its written content
Surface(floor) concrete or steel
Height 75cm
This print and information there in are proprietary to Bestar Electronics Industry Co., Ltd.
Direction X,Y&Z 3axes
G
F
E
D
C
C
After the test,all electronic and acoustic characteristic should be satisfied with the
specification. SPL: Deviation is of ±2dB of initial value.
B
Date:
Drawn by:
11/10/30
A
A
REV.
Date
6 5
汪凤声
Drawn
Note
Checked by:
Approved by:
www.be-star.com wu@be-star.com
4
11/10/30
汪凤声
王 平
张秀琴
3 2
BLS57-2-25H25.5 LF
Speaker
DRG NO: BS/TES01.996A
Page:4 of 6
1
B
A
Page 5
56 4 23 1
博士达
H
BLS57-2-25H25.5 LF
5. Packing
G
F
E
TBD
H
G
F
E
D
and shall not be used in whole or in part without its written content
This print and information there in are proprietary to Bestar Electronics Industry Co., Ltd.
C
B
Date:
Drawn by:
08.02.13
A
A
REV.
Date
6 5
汪凤声
Drawn
Note
Checked by:
Approved by:
www.be-star.com wu@be-star.com
4
08.02.13
汪凤声
王 平
张秀琴
3 2
BLS57-2-25H25.5 LF
Speaker
DRG NO: BS/TES01.996A
Page:5 of 6
1
D
C
B
A
Page 6
6 5
博士达
4 3 2 1
H
BLS57-2-25H25.5 LF
5. History change record
version
G
F
E
A
No.
Before
Change Items
After
Date
11/10/30
汪凤声
H
ApprovedDrawn
G
张秀琴
F
E
D
and shall not be used in whole or in part without its written content
This print and information there in are proprietary to Bestar Electronics Industry Co., Ltd.
C
B
Date:
Drawn by:
11/10/30
A
A
REV.
6 5
汪凤声
DrawnDate
Note
Checked by:
Approved by:
4 3
11/10/30
汪凤声
王 平
张秀琴
www.be-star.com wu@be-star.com
BLS57-2-25H25.5 LF
Speaker
DRG NO: BS/TES01.996A
2 1
Page:6 of 6
D
C
B
A
Loading...