Page 1
SPECIFICATION
FOR DYNAMIC SPEAKER
TOTAL PAGE
07
www.be-star.com
RoHS
Preliminary Specification For The Acoustic
Characteristics of Dynamic Speaker
Customer
Date
Page
16 JUN. 12
01 of 07
Model Name
Product No.Customer P/N
Issue No.
Issue Date
BLS50-1-08H18.2-05 LF
260100
BS/TES01.939A
2012/06/16
Approval:
1.Description
2.Characteristics
3.Drawing
4. Reliability Test
5. Packing
6. History change record
Drawn by
Checked by
汪凤声
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
文件号：BS/QDTE045B
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6
5 2
BLS50-1-08H18.2-05 LF
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1.Description
1.1 Acoustic component Performance Specification
1.2 The present document specifies performance
requirements for the acoustic characteristics of speaker
2.Characteristics
G
2.1 Electrical and Mechanical Characteristics
1.Technical Terms
No. Item Specifications
1. Size 50*18.2mm
4
3
1
H
G
F
2. Impedance at 1KHz 8±1.2 Ω
F
3. Resonance frequency 180±36Hz
4. Operating frequency range fo...10K Hz
5. Rated input power 1W
E
6. Maximum input power 3W
E
7. Buzz & Rattle(at sine wave2V) must be normal
8. T.H.D <5%(above 300HZ)
9. SPL(1W,1M) at 1.0K Hz 80± 3dB
D
10. Operating temperature -10...+70 C
D
11. Storage temperature -10...+70 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
2.2 Test Method
Power Amplifier
C
1 m
1W(2.83Vrms)
B
Speaker
Mic
Audio
Analyser
B
Anechoic chamber
Date:
Drawn by:
2012/06/16
A
A
Rev.
6 5 4
汪凤声
DrawnDate
Note
Checked by:
Approved by:
www.be-star.com wu@be-star.com
2012/06/16
汪凤声
王 平
张秀琴
3 2 1
BLS50-1-08H18.2B-03 LF
Speaker
DRG NO: BS/TES01.939A
A
Page:2 of 7
Page 3
6 3
BLS50-1-08H18.2-05 LF
H
2.3 Frequency Response Curve (only for reference)
A: Frequency Response Magn 0 dB re 20.00μPa/V 1/12Oct
25 4 1
H
G
F
G
F
Sound Pressure Level (dB)
E
2.4 Total Harmonic Distortion Curve
Frequency (Hz)
E
A: Frequency Response Magn 0 dB re 20.00μPa/V 1/12Oct
D
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
C
Sound Pressure Level (dB)
B
B
Frequency (Hz)
Date:
Drawn by:
2012/06/16
A
A
REV.
Date
6
汪凤声
Drawn
Note
5 4
Checked by:
Approved by:
www.be-star.com wu@be-star.com
2012/06/16
汪凤声
王 平
张秀琴
3 2
BLS50-1-08H18.2-05 LF
Speaker
DRG NO: BS/TES01.939A
A
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BLS50-1-08H18.2-05 LF
H
3.Drawing
G
+0.1
20.8
-0.2
F
E
20+0.5
2.8
12±0.2
Baffle Hole: 45
R1
±
0.15
G
F
E
Marking
+0.6
20.9
-0.3
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
9.5
0.5
B
Ø50±0.2
17.5±0.2
18.2±0.5
D
C
B
Date:
Drawn by:
2012/06/16
A
A
REV.
Date
6
汪凤声
Drawn
5 4
Note
Checked by:
Approved by:
www.be-star.com wu@be-star.com
2012/06/16
汪凤声
王 平
张秀琴
3 2
BLS50-1-08H18.2-05 LF
Speaker
DRG NO: BS/TES01.939A
A
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1
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BLS50-1-08H18.2-05 LF
H
4. Reliability Test
G
4.1 Load Test
Power (Nom) 1 W(white noise)
Duration 96hrs
4.2 High Temperature Test
Temperature +70±2°C
F
Duration 96hrs
4.3 Low Temperature Test
Temperature -10±2°C
Duration 96hrs
E
4.4 Damp Heat
Temperature 40±2°C
Relative Humidity 90%-95%RH
Duration 96hrs
G
F
E
D
4.5 Drop Test
D
Height 75cm
Drop face free falling on concrete floor
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 times
4.6 Vibration Test
Frequency 30±15Hz
C
Amplitude 1.5mm for 3hrs
C
Notice:
1.After test leave at room temperature for 1 hours,SPL shall not deviate by
B
A
A
REV.
±3dB from pre-test measurement,and meet above spec.item 5,6,7,8,9
2012/06/16
汪凤声
王 平
张秀琴
DRG NO: BS/TES01.939A
3 2
2012/06/16
Date
汪凤声
Drawn
6 5
Note
Date:
Drawn by:
Checked by:
Approved by:
www.be-star.com wu@be-star.com
4
BLS50-1-08H18.2-05 LF
Speaker
Page:5 of 7
1
B
A
Page 6
6
5
4
3
2 1
H
H
BLS50-1-08H18.2-05 LF
5. Packing
G
F
20pcs
E
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
Remark:
D
C
7pcs cardboard per carton,
NO:
SPEAKER:
140pcs per carton,
1pc cardboard 1pc clapboard,
2pcs covers percarton.
QUANTITY:
GR/NET WT: Kg
B
A
2012/06/16
A
REV.
6 5
汪凤声
DrawnDate
30.5X21X31 cm
Date:
Drawn by:
Checked by:
Note
Approved by:
4 3
2012/06/16
汪凤声
王 平
张秀琴
www.be-star.com wu@be-star.com
BLS50-1-08H18.2-05 LF
Speaker
DRG NO: BS/TES01.939A
2 1
Page:6 of 7
B
A
Page 7
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5
4
3
2 1
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BLS50-1-08H18.2-05 LF
6. History change record
G
F
E
version
No.
A
Before
Change Items
After
Date
2012/06/16
汪凤声
H
G
ApprovedDrawn
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
2012/06/16
汪凤声
王 平
张秀琴
BLS50-1-08H18.2-05 LF
Speaker
DRG NO: BS/TES01.939A
2 1
Page:7 of 7
A
2012/06/16
A
REV.
6 5
汪凤声
DrawnDate
Note
Date:
Drawn by:
Checked by:
Approved by:
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4 3
D
C
B
A
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