BeStar BMS25-11-04H4.5 LF - Manual (Page 6)

3.Sensitivity difference at F0~2KHz shall be within ±3dB from initial value after test.
4.5 Temperature Cycle Test
Cycles 10
Notice:
1.Immediately after reliability test,the samples shall be stored under climatic conditions
such as normally exist in ordinary rooms or laboratories.Unless otherwise noted,the
recovery period shall be 4hrs at least before performance testing.
2. After reliability test ,all samples must be meet the requirements specified
4.6 Drop Test
Height 1.0m
Drop face thick board (20mm)
Times 10 (three times in
each durection )
+25
-40
T( °C)
+85
t (min) 30
1 cycles
30 30
transition time:20-30s
4.3 Low Temperature Test
Temperature -40±3°C
Duration 96hrs
4.1 Load Test
Power (Nom) 1.5W(sine wave)
Duration 96hrs
4.2 High Temperature Test
Temperature
+85 ±3°C
Duration
96hrs
4. Reliability Test
4.4 Damp Heat
Temperature 40±3°C
Relative Humidity
90%-95%RH
Duration
96hrs
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Drawn Rev. Date Approved by:
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Note
Date:
Page:06 of 08
Speaker
DRG NO: BS/TES01.1078A
A 2010/10/12
博 士 達
2010/10/12
BMS25-11-04H4.5 LF
李红元
王 平 王文邦
王文邦
BMS25-11-04H4.5 LF