BeStar BLS50-2B-08H24.5W050J LF User Manual

SPECIFICATION

FOR DYNAMIC SPEAKER

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08

www.be-star.com

RoHS

Preliminary Specification For The Acoustic
Characteristics of Dynamic Speaker

Customer

Date
Page

Approval：

1.Description

2.Characteristics

3.Drawing

4.Reliability test

5.Notice

6.Packing

7.History Change Record

18 Nov. 11
01 of 08

Model Name

Product No.Customer P/N
Issue No.
Issue Date

BLS50-2B-08H24.5W050J LF

121217

BS/TES01.729A

2011/11/18

Drawn by

汪凤声

Checked by

王 平

Approved by

张秀琴

BESTAR ELECTRONICS INDUSTRY CO.,LTD

No.199 HuangHe West Road.New district,ChangZhou,JiangSu Province,P.R.China

Tel: [phone] Fax: [phone]

E-mail:[e-mail] http://www.be-star.com

Customer approved

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BLS50-2B-08H24.5W050J LF

1.Description

1.1 Acoustic component Performance Specification

1.2 The present document specifies performance requirements
for the acoustic characteristics of speaker

2.Characteristics

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F

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2.1 Electrical and Mechanical Characteristics

No. Item Specifications

1. Size Ø50x24.5mm

2. Impedance at 1KHz 8±1.2 Ω

3. Resonance frequency 450±90Hz

4. Operating frequency range fo...4K Hz

5. Rated input power 0.3W

6. Maximum input power 0.5W

7. Buzz & Rattle(at sine wave 1.5V) must be normal

8. SPL(1W/1M) 83± 3dB(at 1KHz)

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9. Material Mylar cone

10. Polarity Positive voltage to (+),

the diaphragm move forward

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D

11. Operating temperature -20...+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

B

12. Storage temperature -20...+70°C

2.2 Test Method
Power Amplifier

1 m

1W(2.83Vrms)

Speaker

Mic

Audio
Analyser

C

B

Anechoic chamber

Date:

A

A

Rev.

2011/11/18

Date

6

汪凤声

Drawn

Note

Drawn by:
Checked by:
Approved by:

www.be-star.com [e-mail]

45 3

2011/11/18

汪凤声
王 平

张秀琴

BLS50-2B-08H24.5W050J LF

Speaker

DRG NO:BS/TES01.729A

2 1

Page:02 of 08

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BLS50-2B-08H24.5W050J LF

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2.3 Frequency Response Curve (only for reference)
A: Frequency Response Magn 0 dB re 20.00 μPa/V 1/12Oct

90

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G

80

G

70

60

F

F

50

Sound Pressure Level (dB)

40

30

E

100

1000

10K

20K

E

Frequency (Hz)

2.4 Resonance Frequency Curve
A: Frequency Response Magn 0 dB re 20.00 μPa/V 1/12Oct

D

D

30

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.

25

20

C

15

C

10

Sound Pressure Level (dB)

B

5

0

B

100 1K 10K 20K

Frequency (Hz)

Date:

A

A

Rev.

2011/11/18

Date

汪凤声

Drawn

Note

6

Drawn by:
Checked by:

Approved by:

www.be-star.com [e-mail]

45 3

2011/11/18

汪凤声
王 平

张秀琴

BLS50-2B-08H24.5W050J LF

Speaker

DRG NO: BS/TES01.729A

Page:03 of 08

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BLS50-2B-08H24.5W050J LF

3.Drawing

black

Unit: mm

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red

+

Bestat

BLS50-2B-08

F

E

MM DD YY

H16.5W050J LF

Ø50±0.3

D

and shall not be used in whole or in part without its written content

24.5±1.2
8

Ø48

0.0

-0.2

gasket (Rubber)

50

+5
0

D

9.7±0.8

This print and information there in are proprietary to Bestar Electronics Industry Co., Ltd.

C

Connector: PARP-02V

1
2

Retainer: PMS-02V-S

Terminal: SPA-001T-P0.5

3

4

B

24 AWG UL 1007,80°C,300V,RED/BLACK

C

B

Date:

A

A

Rev.

2011/11/18

Date

汪凤声

Drawn

Note

6

Drawn by:

Checked by:

Approved by:

www.be-star.com [e-mail]

45 3

2011/11/18

汪凤声
王 平

张秀琴

BLS50-2B-08H24.5W050J LF

Speaker

DRG NO:BS/TES01.729A

2 1

Page:04 of 08

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BLS50-2B-08H24.5W050J LF

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D

Ø48.7

0.0

-0.1

D

Ø43.6±0.2

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

A

A

Rev.

2011/11/18

Date

汪凤声

Drawn

6

0.0

+0.1

0.8

Note

Ø41±0.2

0.0

Ø48

-0.2

Date:
Drawn by:

Checked by:

Approved by:

www.be-star.com [e-mail]

45 3

2011/11/18

汪凤声
王 平

张秀琴

9±0.1

BLS50-2B-08H24.5W050J LF

Speaker

DRG NO:BS/TES01.729A

2 1

C

B

A

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BLS50-2B-08H24.5W050J LF

4. Reliability Test

4.1 Load test

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Input Power 0.3W,white noise
Duration 96hrs

4.2 Heat test
Temperature +70± 3°C
Duration 96hrs

F

4.3 Cold test
Temperature -20± 3°C
Duration 96hrs

E

4.4 Temperature change( shock )
Low Temperature -20± 3°C
High Temperature +60± 3°C
Dwell time each temperature 30min
Transfer time from lower to upper temperature<15s
Cycles 5

D

4.5 Moisture Test
Tempeature +40± 2°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.

Humidity 90±~95±(RH)
Duration 48hrs

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D

C

4.6 Drop test
Surface(floor) concrete or steel

C

Height 80cm
Direction X,Y&Z 3axes

B

A

A

Rev.

After the test,all electronic and acoustic characteristic should be satisfied with the
specification. SPL: Deviation is of 2dB of initial value.

2011/11/18

汪凤声
王 平

张秀琴

BLS50-2B-08H24.5W050J LF

DRG NO:BS/TES01.729A

2011/11/18

Date

6

汪凤声

Drawn

Note

Date:
Drawn by:

Checked by:

Approved by:

www.be-star.com [e-mail]

45 3

B

A

Speaker

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BLS50-2B-08H24.5W050J LF

6. Packing

G

F

E

25pcs

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

A

A

Rev.

2011/11/18

Date

汪凤声

Drawn

6

NO:
SPEAKER:

QUANTITY:
GR/NET WT: Kg

30.5X21X31 cm

Note

Date:
Drawn by:

Checked by:

Approved by:

www.be-star.com [e-mail]

2011/11/18

汪凤声
王 平

张秀琴

45 3

Remark:
25pcs per board,
8pcs cardboard per carton,
175pcs per carton,
Carton size: 30.5X21X31cm

BLS50-2B-08H24.5W050J LF

Speaker

DRG NO:BS/TES01.729A

2 1

Page:07 of 08

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B

A

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BLS50-2B-08H24.5W050J LF

7. History change record

G

version
No.

A

F

E

Before

Change Items

After

Date

2011/11/18

汪凤声

ApprovedDrawn

张秀琴

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:

A

A

Rev.

2011/11/18

Date

汪凤声

Drawn

Note

6

Drawn by:

Checked by:

Approved by:

www.be-star.com [e-mail]

45 3

2011/11/18

汪凤声
王 平

张秀琴

BLS50-2B-08H24.5W050J LF

Speaker

DRG NO:BS/TES01.729A

2 1

Page:08 of 08

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C

B

A