User guide

3.Sensitivity difference at 2.0KHz shall be within ±3dB from initial value after test.
6.5 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
6.6 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
6.3 Low Temperature Test
Temperature -40±3°C
Duration 96hrs
6.1 Load Test
Power (Nom) 0.5W(sine wave/in 1cc box)
Duration 96hrs
6.2 High Temperature Test
Temperature +85±3°C
Duration 96hrs
6. Reliability Test
6.4 Damp Heat
Temperature 40±3°C
Relative Humidity 90%-95%RH
Duration 96hrs
B
6
A
45 3
C
2 1
A
B
C
D
E
F
G
H
6 45 3
D
E
F
G
12
Drawn
Rev.
Date
Approved by:
Checked by:
Note
Page:11 of 13
Speaker
This print and information there in are proprietary to Bestar Acoustics Co., Ltd.
and shall not be used in whole or in part without its written content
BMS1813F-11C-08H4.5 LF
DRG NO: BS/TES01.1230B
BMS1813F-11C-08H4.5 LF
汪珍珍
www.bestargroups.com [e-mail]
Drawn by:
Date:
B
王凯
王凯
王凯
2013/09/10
2013/09/10