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Reliability Testing

Type of Test

Test Specifications

High Temperature Test

96 hours at +80°C ± 3°C followed by three hours in

normal room temperature

Low Temperature Test

96 hours at -40°C ± 3°C followed by three hours in

normal room temperature

Humidity Test

96 hours at +40°C ± 3°C with relative humidity at

95% followed by 3 hours in normal room

temperature

Temperature Cycle Testing

The part shall be subjected to 5 cycles using the

following procedure:

Low temperature: -40℃±3℃

High temperature:+80℃±3℃

Cycle: 1 hour/cycle each

Vibration Test

10 to 55 to 10 Hz sine sweep, 15 minutes per cycle

@ 5G constant.

2 hours in each axis X, Y, and Z.

Drop Test

Drop the speakers onto a 20mm thick board 10

times from a height of 100cm, once each side

Load Test and Max Power Test

White noise is applied at the speakers rated power

for 96 hours at room temperature; max power is

applied for 1 minute on, 2 minutes off; 10 cycles.

After each test, the speaker’s SPL shall be ±3 dB of the original SPL