Page 1
SPECIFICATION
FOR DYNAMIC SPEAKER
Customer
Customer P/N
BeStar Model Name
Product No.
BLS18-11-08H7.8 LF
127900
Issue No. BS/TES01.547B
Issue Date
06/02/09
Approval:
1.Characteristic
2.Typical Frequency Response Curve
3.Dimension
4.Reliability Test
5.Packing
6.History change record
Drawn by Checked by
Approved by
Customer approved
For conform to the European Union Directive on the Restriction of Hazardous Substances(RoHS), this type of
productions forbid use all the hazardous substances as follow:
Lead
Cadmium
Mercury
Hexavalent chromium
Polybrominated biphenyls (PBB)
Polybrominated diphenyl ethers (PBDE)
BESTAR ELECTRONICS INDUSTRY CO.,LTD
No.199 HuangHe West Road.New district,changzhou,
jiangsu Province,P.R.China
Tel:86-519-8222567 Fax:86-519-8222551
Http:www.be-star.com
E-mail: wu@be-star.com, info@be-star.com
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BLS18-11-08H7.8 LF
1. Characteristic
1.1 Electrical and Mechanical Characteristics
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No. Item Specification
1. Impedance(at 1.5kHz) 8 ± 15%Ω
2. Rated Input Power 1.0W
3. Maximum Input Power 1.5W
4. Resonance Frequency 500 ± 20%Hz
5. Frequency Response F0 ～20KHz
6. Output SPL 84 ± 3dB/0.3m 1W at 0.6,0.8,1.0,1.2KHz average
7. Distortion（at1kHz,1.5W） ≤5%
8. Buzzes & Rattles Must be normal at sine wave 2.83V
9. Operating Temperature -20 ～+65° C
10. Storage Temperature -20 ～+70° C
HH
G
F
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2. Typical Frequency Response Curve
A: Frequency Response Magn 0 dB re 20.00 μPa/V 1/12Oct
D
and shall not be used in whole or in part without its written content
100
D
90
This print and information there in are proprietary to Bestar Electronics Industry Co., Ltd.
C
80
C
70
Sound Pressure Level (dB)
B
60
100
1K 2K
5K 10K 20K
B
Frequency (Hz)
Date:
Drawn by:
A
Rev.
06/02/09B
Date
BESTAR ELECTRONICS INDUSTRY CO.,LTD
6
朱成兴
Drawn
5 4
Note
Checked by:
Approved by:
www.be-star.com wu@be-star.com
06/02/09
朱成兴
王善梅
郭 敏
3 2
BLS18-11-08H7.8 LF
Speaker
DRG NO: BS/TES01.547B
A
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H
BLS18-11-08H7.8 LF
3. Dimension
G
F
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H
G
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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
D
C
B
Unit:mm
Date:
Drawn by:
A
Rev.
06/02/09B
BESTAR ELECTRONICS INDUSTRY CO.,LTD
6 5
朱成兴
Drawn Date
Note
Checked by:
Approved by:
www.be-star.com wu@be-star.com
4 3
06/02/09
朱成兴
王善梅
郭 敏
BLS18-11-08H7.8 LF
Speaker
DRG NO: BS/TES01.547B
2 1
A
Page:2 of 5
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4
BLS18-11-08H7.8 LF
4. Reliability Test
4.1 Load Test
Power Pink noise with 500Hz low cut filter 1.0W/100hours
Duration 100hrs
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4.2 High Temperature Test
Temperature +70± 3℃
Relative Humidity 20%-50%RH
Duration 16hrs
4.3 Low Temperature Test
Temperature -20± 3℃
Duration 16hrs
4.4 Damp Heat
Temperature 40± 3℃
Relative Humidity 90%-95%RH
Duration 16hrs
4.5 Temperature Cycle Test
Cycle 4
HH
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+70
25
1hrs 1hrs
D
-20
1hrs
25
D
4.6 Drop Test
Height 100cm (in state of packing)
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.
Times 10 (Drop onto hardwood board)
C
All these tests above should be measured after leaving normal temperature for 1hrs.
C
sensitivity difference at 1kHz shall be within ± 3dB from initial value after test.
B
B
Date:
Drawn by:
B
A
Rev.
06/02/09
BESTAR ELECTRONICS INDUSTRY CO.,LTD
6
朱成兴
Drawn Date
Checked by:
Note
5
Approved by:
www.be-star.com wu@be-star.com
4
06/02/09
朱成兴
王善梅
郭 敏
3
BLS18-11-08H7.8 LF
Speaker
DRG NO: BS/TES01.547B
2 1
A
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BLS18-11-08H7.8 LF
5. Packing
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HH
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1000pcs 1000pcs
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
D
C
Remark:
50 pcs per tray
B
20 trays for unit, 2 units per carton
Total 2000pcs per carton
Size: 41×33×27.5(cm)
B
Date:
Drawn by:
B
A
Rev.
06/02/09
Date Drawn
BESTAR ELECTRONICS INDUSTRY CO.,LTD
6 5
朱成兴
Note
Checked by:
Approved by:
www.be-star.com wu@be-star.com
4
06/02/09
朱成兴
王善梅
郭 敏
3
BLS18-11-08H7.8 LF
Speaker
DRG NO: BS/TES01.547B
2
A
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1
Page 6
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BLS18-11-08H7.8 LF
H
6. History change record
45
3
12
H
version
No.
G
F
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B
Before After
Change Items
Date
06/02/09 朱成兴
Drawn
Approved
郭敏
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:
B
A
Rev.
06/02/09
BESTAR ELECTRONICS INDUSTRY CO.,LTD
6
朱成兴
Drawn Date
Checked by:
Note
5
Approved by:
www.be-star.com wu@be-star.com
4
06/02/09
朱成兴
王善梅
郭 敏
3
BLS18-11-08H7.8 LF
Speaker
DRG NO: BS/TES01.547B
2
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D
C
B
A
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