BeStar BLS2828-12-04H11 LF - Manual (Page 4)

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2.sensitivity difference at 1kHz shall be within ±3dB from initial value after test.
Date:
Checked by:
Approved by:
Drawn by:
4
Rev.
6
A
A
Note Drawn Date
5
张小红
B
www.be-star.com [email protected]
3
张小红
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Speaker
A
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4.6 Drop Test
Height 100cm (in state of packing)
Times 10 (Drop onto hardwood board)
4.5 Temperature Cycle Test
Cycle 4
4.3 Low Temperature Test
Temperature -25±3
℃
Duration 16hrs
4.1 Load Test
Power 1.0W (sine wave)
Duration 96hrs
4.4 Damp Heat
Temperature 40±3
℃
Relative Humidity 90%-95%RH
Duration 16hrs
1.All these tests above should be measured after leaving normal temperature
for 2hrs.
4.2 High Temperature Test
Temperature
+75 ±3 ℃
Relative Humidity 20%-50%RH
Duration 16hrs
-25
°C
1hrs
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25
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1hrs 1hrs
+75 °C
F
4. Reliability Test
G
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25
°C
E
F
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4 6 5 3 2 1
Notice:
李红元
王文邦 09/10/22
BLS2828-12-04H11 LF
DRG NO: BS/TES01.1032A
09/10/22
BLS2828-12-04H11 LF