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of PUI Audio Inc. is prohibited.

©2019, PUI Audio Inc.

PUI Audio, Inc., 3541 Stop Eight Road, Dayton, OH 45414

Tel: (937) 415-5901 Fax: (937) 415-5925

Recommended Soldering Procedure

Hand solder using a 25 to 100-watt ESD safe soldering iron with the smallest practical tip. Solder at

350°C ± 20°C (660°F ± 30°F) using lead-free solder for less than 3 seconds per terminal.

Reliability Testing

Type of Test

Test Specifications

High Temperature Test

Place the speaker in the +85 ± 2 °C chamber for

96 hours, then leave the speaker at room

temperature for 1 hour, the SPL should not

deviate by ± 3 dB, and resonant frequency should

not deviate by ± 50 Hz, compared with pre-test

measurement.

Low Temperature Test

Place the speaker in the −40 ± 2 °C chamber for

96 hours, then leave the speaker at room

temperature for 1 hour, the SPL should not

deviate by ± 3 dB, and resonant frequency should

not deviate by ± 50 Hz, compared with pre-test

measurement.

Humidity Test

After exposure the speaker in the + 40±2 °C,

relative humidity 90% ∼ 95% chamber for 96

hours, then leave the speaker at room

temperature for 6 hours, the SPL should not

deviate by ±3 dB, and resonant frequency should

not deviate by ±50 Hz, compare with pre-test

measurement.

Temperature Cycle Testing

Place the speaker in the chamber, temperature

cycle setting as below, SPL should not deviate by

± 3 dB, and resonant frequency should not

deviate by ± 80 Hz, compare with pre-test

measurement.

Vibration Test

Frequency 30±15 Hz, Amplitude 1.5 mm for 3

Hours. After test, SPL shall not deviate by

±3 dB from pre-test measurement

Drop Test

75 cm free falling on concrete floor, 10 times.

After test, SPL shall not deviate by ±3 dB

from pre-test measurement.

Load Test

Speaker shall not fail after applying 20 ∼ 20 kHz

pink noise with HPF rated power input (RMS), 96

hours. After test, SPL shall not deviate by ±3 dB

from pre-test measurement,