Page 1
SPECIFICATION
FOR DYNAMIC SPEAKER
TOTAL PAGE
06
www.be-star.com
Preliminary Specification For The Acoustic
Characteristics of Dynamic Speaker
Customer
Date
Page
10 Mar. 12
01 of 06
Model Name
Product No.Customer P/N
Issue No.
Issue Date
BLS77-2-08H29 LF
123219
BS/TES01.778A
03/10/12
RoHS
Approval：
1.Technical Terms
2.Frequency Response
3.Drawing
4.Reliability Test
5.Packing
6.History Change Record
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
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46 5 23 1
654
3
2
1
H
H
BLS77-2-08H29 LF
1.Technical Terms
G
No. Item Specifications
1. Size Ø77*23.5mm
2. Impedance at 1000Hz 8± 1.2 Ω
3. Resonance frequency 220± 20%Hz
4. Operating frequency range fo...15K Hz
F
5. Rated input power 0.8W
6. Maximum input power 1.5W
7. Buzz & Rattle(at sine wave2.0V) must be normal
8. T.H.D(frequency:1KHz,input power1w) <5%
E
9. SPL(1W,1M) at 1KHz 86± 3dB
G
F
E
10 Polarity Positive voltage to (+),
the diaphragm move forward
10. Operating temperature -10...+40°C
D
D
11. Storage temperature -25...+ 55°C
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
2.Frequency Response
110.0
100.0
90.0
80.0
70.0
180.0
108.0
36.0
-36.0
-108.0
C
B
60.0
100
Date:
Drawn by:
2012/03/10
A
A
Rev.
汪凤声
DrawnDate
Note
Checked by:
Approved by:
1k 10k
2012/03/10
汪凤声
王 平
张秀琴
www.be-star.com wu@be-star.com
-180.0
Hz20k
BLS77-2-08H29 LF
Speaker
DRG NO: BS/TES01.778A
A
Page:2 of 6
Page 3
ABC
D
G
H
6 3 25 4 1
H
BLS77-2-08H29 LF
3.Drawing
G
77±0.3
F
E
D
-
+
F
E
77±0.3
Ø71
and shall not be used in whole or in part without its written content
Ø45
This print and information there in are proprietary to Bestar Electronics Industry Co., Ltd.
C
29±0.5
3.17±0.3
B
Date:
Drawn by:
2012/03/10
A
A
REV.
Date
汪凤声
Drawn
Note
Checked by:
Approved by:
www.be-star.com wu@be-star.com
2012/03/10
汪凤声
王 平
张秀琴
BLS77-2-08H29 LF
Speaker
DRG NO: BS/TES01.778A
Page:3 of 6
Page 4
A
D
G
H
56 4 23 1
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BLS77-2-08H29 LF
4. Reliability Test
4.1 Load test
G
Input Power 0.8W,white noise
Duration 96hrs
4.2 Heat test
Temperature +55± 3°C
Duration 96hrs
F
4.3 Cold test
F
Temperature -25± 3°C
Duration 96hrs
4.4 Temperature change( shock )
Low Temperature -25± 3°C
E
High Temperature +55± 3°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
D
Humidity 92± 2%(RH)
Duration 96hrs
and shall not be used in whole or in part without its written content
4.6 Drop test
Surface(floor) concrete or steel
This print and information there in are proprietary to Bestar Electronics Industry Co., Ltd.
Height 80cm
Direction X,Y&Z 3axes
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:
A
A
REV.
2012/03/10
Date
汪凤声
Drawn
Note Approved by:
Checked by:
www.be-star.com wu@be-star.com
2012/03/10
汪凤声
王 平
张秀琴
BLS77-2-08H29 LF
Speaker
DRG NO: BS/TES01.778A
Page:4 of 6
B
Page 5
A
B
C
6
D
G
H
5 4 3
2 1
H
BLS77-2-08H29 LF
5. Packing
G
210
40 30 80 30 30
78
F
F
3
瓦楞纸板
38
E
E
24
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
5pcs paperboard per carton，
5pcs cardboard per carton,
60pcs per carton，
39
B
17
每箱5板，
每箱5只盖板，
每箱60只，
25
Date:
Drawn by:
2012/03/10
A
A
REV.
汪凤声
DrawnDate
Note
Checked by:
Approved by:
www.be-star.com wu@be-star.com
2012/03/10
汪凤声
王 平
张秀琴
BLS77-2-08H29 LF
Speaker
DRG NO：
BS/TES01.778A
Page:5 of 6
Page 6
6
5
4
3
2
1
6 5
4 3 2 1
H
BLS77-2-08H29 LF
H
6. History change record
version
G
No.
A
F
E
Before
Change Items
After
Date
2012/03/10
ApprovedDrawn
G
汪凤声 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
2012/03/10
汪凤声
王 平
张秀琴
BLS77-2-08H29 LF
Speaker
DRG NO: BS/TES01.778A
Page:6 of 6
A
A
REV.
2012/03/10
汪凤声
DrawnDate
Note
Date:
Drawn by:
Checked by:
Approved by:
www.be-star.com wu@be-star.com
D
C
B
A
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