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AS04008CO-2-R

40 x 20mm Speaker

Mechanical and Environment Testing

Test Description

Test Condition

High Temperature

60°C ±2°C with random humidity for 96 hours

Low Temperature

-30°C ±2°C with random humidity for 96 hours

Humidity

40°C with 90% to 95% relative humidity for 96

hours

Vibration

1.5 mm movement modulated at 10 to 55 Hz for 2

hours

Drop Test

75 cm free fall onto concrete floor, 10 cycles

Temperature Cycle Test

-30°C to 60°C, 4 cycles (refer to Temperature Cycle

Test Graph)

After tests, speaker shall rest for 1 hours. SPL shall not deviate ±4 dB from pre-test measurement.

Temperature Cycle Test Graph

Thiele-Small Parameters

Specification

Value

Fo (Hz)

550

Qes

5.68

Qms

3.46

Qts

2.15

Vas (mm^3)

9.8k

Sd (mm

452

Mms (g)

0.226

Re (ohm)

7.4

BL (T)

0.96

Frequency Response and SPL Measurement Setup