Page 1
SPECIFICATION
FOR AUTOMOTIVE SPEAKER
TOTAL PAGE
8
www.bestargroups.com
RoHS
Preliminary Specification For The Acoustic
Characteristics of Dynamic Speaker
Customer
Date
Page
22 April. 13
01 of 08
Model Name
Product No.Customer P/N
Issue No.
Issue Date
BMS40-12-08H6.9 LF
132619
BS/TES01.1256A
22/04/2013
Approval：
1.Characteristics
2.Drawing
3.Reliability Test
4.Packing
5.History Change Record
Drawn by
王平
Checked by
王文邦
Approved by
李红元
Customer approved
BESTAR ACOUSTICS 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.bestargroups.com
文件号：BS/QDTE045B
Page 2
6 45 3
BMS40-12-08H6.9LF
H
1.Characteristics
1.1 Electrical and Mechanical Characteristics
No. Item Specification
G
1. Dimension Ø40 ×6.9 (mm)
2. AC Impedance 8 Ω±15%(at 1KHz)
3. Rated Input Power 2.0W(4Vrms)
4. Maximum Input Power 3W(4.89Vrms)
12
G
F
5. Resonance Frequency 500Hz ±20%
F
6. Frequency Response 200~5KHz
7. S.P.L 83±2dB/1m/1W at1.0 KHz
8. THD ≤5% (at 1KHz/1W)
9. Buzzes & Rattles Must be normal at sine wave 4Vrms
E
10. Polarity Positive voltage to (+),Diaphragm moves forward
E
11. Operating Temperature -40~+ 85°C
12. Storage Temperature -40~+ 85°C
13. Weight ~9.2g
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 Acoustics Co., Ltd.
C
1.2 Test Method
Power Amplifier
D
C
100cm
1W(2.83Vrms)
B
A
22/04/13A
Rev.
文件号：BS/QDTE045B
Date
6
Speaker
Anechoic chamber
王 平
Drawn
Note
Mic
Date:
Drawn by:
Checked by:
Approved by:
www.bestargroups.com wu@be-star.com
45
22/04/2013
王 平
王文邦
李红元
3
Audio
Analyser
BMS40-12-08H6.9 LF
Speaker
DRG NO: BS/TES01.1256A
2 1
B
A
Page:02 of 08
Page 3
6 45 3
BMS40-12-08H6.9LF
H
1.3 Frequency Response Curve (only for reference)
A: Frequency Response Magn 0 dB re 20.00 μPa/V 1/12Oct
100
G
90
2
1
G
F
80
F
70
Sound Pressure Level (dB)
E
60
100
1K 2K
5K 10K 20K
E
Frequency (Hz)
1.4 Total Harmonic Distortion Curve ( only for reference)
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 Acoustics Co., Ltd.
40
D
30
C
20
C
THD (%)
10
B
0
100
A
22/04/13A
Rev.
文件号：BS/QDTE045B
Date
6
王 平
Drawn
1K 2K
Note
Date:
Drawn by:
Checked by:
Approved by:
www.bestargroups.com wu@be-star.com
22/04/2013
王 平
王文邦
李红元
45 3
5K 10K 20K
Frequency (Hz)
BMS40-12-08H6.9 LF
Speaker
DRG NO: BS/TES01.1256A
2 1
Page:03 of 08
B
A
Page 4
6 45 3
BMS40-12-08H6.9LF
H
1.5 Impedance Curve (only for reference)
16
12
G
G
12
8
F
F
Impedance (ohm)
4
E
0
100
1K 2K
5K 10K 20K
E
Frequency (Hz)
1.6 Buzzer&Rattle Curve(only for reference)
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 Acoustics Co., Ltd.
4
D
3
C
2
R&B (%)
1
B
0
100
A
22/04/13A
Rev.
文件号：BS/QDTE045B
Date
6
王 平
Drawn
1K 2K
Note
Date:
Drawn by:
Checked by:
Approved by:
www.bestargroups.com wu@be-star.com
22/04/2013
王 平
王文邦
李红元
45 3
5K 10K 20K
Frequency (Hz)
BMS40-12-08H6.9 LF
Speaker
DRG NO: BS/TES01.1256A
2 1
Page:04 of 08
C
B
A
Page 5
6 45 3
12
BMS40-12-08H6.9LF
H
2.Drawing
unit:mm
tolerance:±0.2
Ø40±0.2
G
F
E
G
F
E
6.9±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 Acoustics Co., Ltd.
D
3.Reliability Test
3.1 Load Test
Power (Nom) 2.0W(white noise)
Duration 96hrs
C
3.2 High Temperature Test
Temperature +85±2°C
Duration 96hrs
3.3 Low Temperature Test
Temperature -40±2°C
Duration 96hrs
B
3.4 Damp Heat
Temperature 40±2°C
Relative Humidity 90%-95%RH
Duration 96hrs
A
22/04/13A
Rev.
文件号：BS/QDTE045B
Date
6
王 平
Drawn
Note
Date:
Drawn by:
Checked by:
Approved by:
www.bestargroups.com wu@be-star.com
22/04/2013
王 平
王文邦
李红元
45 3
BMS40-12-08H6.9 LF
Speaker
DRG NO: BS/TES01.1256A
2 1
C
B
A
Page:05 of 08
Page 6
6
BMS40-12-08H6.9LF
H
3.5 Temperature Cycle Test
Cycles 4
45
3
12
T(°C)
G
+85
transition time:20-30s
G
+25
-40
1
F
1 1
1 cycles
t hrs)
F
3.6 Drop Test
Height 75cm
Drop face free falling on concrete floor
E
Times 10 times
E
3.7 Vibration Test
Frequency 30±15Hz
Amplitude 1.5mm for 3hrs
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 Acoustics Co., Ltd.
D
Notice:
C
B
A
文件号：BS/QDTE045B
1.After test leave at room temperature for 1 hours,SPL shall not deviate by
±3dB from pre-test measurement,and meet above spec.item 5,6,7,8,9
22/04/13A
Rev.
Date
6
王 平
Drawn
Note
Date:
Drawn by:
Checked by:
Approved by:
www.bestargroups.com wu@be-star.com
22/04/2013
王 平
王文邦
李红元
45 3
BMS40-12-08H6.9 LF
Speaker
DRG NO: BS/TES01.1256A
2 1
C
B
A
Page:06 of 08
Page 7
6 45 3
BMS40-12-08H6.9LF
H
4. Packing
12
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 Acoustics Co., Ltd.
G
F
E
D
C
B
A
22/04/13A
Rev.
Date
6
文件号：BS/QDTE045B
王 平
Drawn
Note
Date:
Drawn by:
Checked by:
Approved by:
www.bestargroups.com wu@be-star.com
22/04/2013
王 平
王文邦
李红元
45 3
Remark:
50pcs per tray
14 trays per carton
Total 700pcs per carton
Size:41X41X34 cm
BMS40-12-08H6.9 LF
Speaker
DRG NO: BS/TES01.1256A
2 1
C
B
A
Page:07 of 08
Page 8
6 45 3
BMS40-12-08H6.9LF
H
5. History Change Record
12
version
No.
A
G
F
E
Before After
Change Items
Date
22/04/13
Drawn Approved
王 平
李红元
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 Acoustics Co., Ltd.
C
B
A
22/04/13A
Rev.
Date
6
文件号：BS/QDTE045B
王 平
Drawn
Note
Date:
Drawn by:
Checked by:
Approved by:
www.bestargroups.com wu@be-star.com
22/04/2013
王 平
王文邦
李红元
45 3
BMS40-12-08H6.9 LF
Speaker
DRG NO: BS/TES01.1256A
2 1
D
C
B
A
Page:08 of 08
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