BeStar BMS15-11C-08H3.8DRP LF User Manual

SPECIFICATION

FOR DYNAMIC SPEAKER

07TOTAL PAGE

www.be-star.com

Preliminary Specification For The Acoustic
Characteristics of Dynamic Speaker

Customer

Date
Page

28 Dec. 08

01 of 07

Model Name

Product No. Customer P/N
Issue No.

Issue Date

BMS15-11C-08H3.8DRP LF

130429

BS/TES01.991A

08/12/28

RoHS

Approval：

1.Description

2.Characteristics

3.Drawing

4.Reliability Test

5.Packing

6.History Change Record

Drawn by

Checked by

Approved by

Customer approved

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

6 45 3

BMS15-11C-08H3.8DRP 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

No. Item Specification

1. Dimension Ø 15 x 3.8 (erose)

2. AC Impedance 8 Ω± 15%

12

G

F

3. Rated Input Power 0.8W(2.53Vrms)

F

4. Maximum Input Power 1.0W(2.83Vrms)

5. Resonance Frequency 800Hz ± 20%

6. S.P.L ≥92dB/0.1m/0.1W at F0;87 ± 2dB/0.1m/0.1W at 2KHz;

E

≥ 92dB/0.1m/0.1W after 8KHz

E

7. THD(0.1m/0.1W) 400Hz ≤30%,500≤20%,F0~＞1KHz≤10%
1KHz ≤5%;2KHz~10KHz≤2%

8. Buzzes & Rattles Must be normal at sine wave 2.53Vrms

9. Polarity Positive voltage to (+),Diaphragm moves forward

D

10. Operating Temperature -20~+ 65 ° C

D

11. Storage Temperature -30~+ 75 ° 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

12. Weight ~1.3g

2.2 Test Method

Power Amplifier

C

0.1W(0.89Vrms)

B

A

A

08/12/28

Rev.

Date

6

10cm

Speaker

Anechoic chamber

王文邦

Drawn

Mic

Note

Date:
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08/12/28

王文邦

李红元

郭 敏

Audio
Analyser

BMS15-11C-08H3.8DRP LF

Speaker

DRG NO: BS/TES01.991A

2 1

B

A

Page:02 of 07

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BMS15-11C-08H3.8DRP LF

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★ Measurement setup

DUT must be measured in anechoic chamber with ambient noise less than 20dB
SPL in each frequency band.DUT must be equipped with 40X40cm baffle at latest
or speaker box with 2000C.C to define the frequency response and THD.

2.3 Frequency Response Curve (only for reference)

G

100

90

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

12

G

F

F

80

70

E

Sound Pressure Level (dB)

E

60

100

1K 2K

5K 10K 20K

Frequency (Hz)

D

2.4 Total Harmonic Distortion (only for reference)

D

40

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

30

C

20

THD (%)

10

B

B

0

100

1K 2K 5K 10K 20K

Frequency (Hz)

Date:

A

A

Rev.

08/12/28

Date

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Note

6

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45 3

08/12/28

王文邦

李红元

郭 敏

BMS15-11C-08H3.8DRP LF

Speaker

DRG NO: BS/TES01.991A

2 1

A

Page:03 of 07

6 45 3

C

C

BMS15-11C-08H3.8DRP LF

H

3. Drawing

Unit:mm
Tolerance:± 0.2

12

G

F

E

G

F

E

4. Reliability Test

D

4.1 Load Test
Power (Nom) 0.8W(sine wave)

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.

Duration 96hrs

4.2 Operating High Temperature Test
Test condition Input Rated Power to drive the Speaker:Run
pink noise at 20~20KHz;crest factor 6dB,+55 °

C

Duration 120hrs

4.3 Operating Low Temperature Test
Test condition Input Rated Power to drive the Speaker:Run
pink noise at 20~20KHz;crest factor 6dB,-10 °
Duration 120hrs

D

C

B

A

A

Rev.

4.4 Operating Temperature/Humidity Test
Test condition Input Rated Power to drive the Speaker:Run
pink noise at 20~20KHz;crest factor 6dB,-10 ° C

Input Rated Power to drive the Speaker:Run
pink noise at 300~3.4KHz;crest factor 6dB,-10 ° C
Duration 120hrs

08/12/28

王文邦

李红元

郭 敏

BMS15-11C-08H3.8DRP LF

Speaker

DRG NO: BS/TES01.991A

2 1

Page:04 of 07

08/12/28

Date

6

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Date:
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45 3

B

A

6 45 3

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BMS15-11C-08H3.8DRP LF

H

4.5 Non-Operating Low Temperature Test

Test temperature -20 ° C
Duration 120hrs

4.6 Non-Operating Temperature/Humidity Test

Test temperature +65 ° C

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Test humidity 90%RH
Duration 120hrs

4.7 Non-Operating Thermal Shock Test

Test condition 1 +65 ° C /1.5h -20° C/1.5h one cycle
Duration 10 cycles for WMPA
Test condition 2 +75 ° C/1.5h -30° C/1.5h one cycle

F

Duration 10 cycle for IAPA
Trabsition time must be lower than 10s ,the test zone during Hot/Cold

transition shall be reached steady state within 5 min

4.8 Shock Test
Test condition Half-sine shock,500G
Duration 2ms,perform one shock for each face,total 6 faces

E

4.9 MTBF
MTBF 40000h
Test condition Pink noise at 20~20KHz with crest factor 6dB or
other standard pink noise filter generator(IEC-268-5
or IEC-268-1C),40 ° C

4.10 Cp/Cpk
Please venders provide test data for reference

D

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

4.11 Drop Test
Height 1.5m
Drop face thick board (20mm)
Times 10

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

C

4.12 Vibration Test
Vibration 10-55Hz/min
Amplitude 1.5mm
Duration 60 min per axis,3 axis

G

F

E

D

C

B

A

A

Rev.

Notice:

1.All these tests above should be measured after leaving normal temperature
for 2hrs.

2.After the test the part shall meet specifications without any degradation in
appearance and performance except SPL.SPL shall be ± 3dB from initial
value after test.

08/12/28

王文邦

李红元

郭 敏

BMS15-11C-08H3.8DRP LF

DRG NO: BS/TES01.991A

2 1

08/12/28

Date

6

王文邦

Drawn

Note

Date:
Drawn by:
Checked by:

Approved by:

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45 3

B

A

Speaker

Page:05 of 07

6 45 3

BMS15-11C-08H3.8DRP LF

H

5. Packing

12

G

F

E

D

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

P/O NO.
MODEL
O’TY
N.W.
G.W.
SIZE

B

PCS

46×28×28cm

Remark:

50 pcs per tray

10 trays for unit
500 pcs per carton

4 carton per box

Total 2000pcs per box

C

B

Size: 46×28×28(cm)

Date:

A

A

Rev.

08/12/28

Date

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Note

6

Drawn by:

Checked by:
Approved by:

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45 3

08/12/28

王文邦

李红元

郭 敏

BMS15-11C-08H3.8DRP LF

Speaker

DRG NO: BS/TES01.991A

2 1

A

Page:06 of 07

6 45 3

BMS15-11C-08H3.8DRP LF

H

6. History Change Record

12

version
No.

A

G

F

E

Before After

Change Items

Date

08/12/28

Drawn

王文邦

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:

A

A

Rev.

08/12/28

Date

王文邦

Drawn

Note

6

Drawn by:

Checked by:
Approved by:

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

45 3

08/12/28

王文邦

李红元

郭 敏

BMS15-11C-08H3.8DRP LF

Speaker

DRG NO: BS/TES01.991A

2 1

Page:07 of 07

D

C

B

A