Datasheet

3.4 Humidity: GB5170.18-87
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.
3.5 Vibration: GB11606.8-89
Frequency 30±15 Hz, Amplitude 1.5 mm for 3 Hours. After test, SPL shall not deviate by
±3 db from pre-test measurement,
3.6 Load test: GB/T 9396-1996
Speaker should not fail after apply 20 ∼ 20K Hz white noise rated power input (RMS), 96
hours. After test, SPL shall not deviate by ±3 db from pre-test measurement,
3.7 Drop test: GB2423. 8-81
75 cm free falling on concrete floor, 10 times. After test, SPL shall not deviate by ±3 db
from pre-test measurement,
4. Mounting precaution
In order to keep speaker work normally, there shall leave enough free space for diaphragm
moving, minimum distance required is marked in speaker mechanical drawing.
5. Measuring & standard referenced
Abstract from GB/T 9396-1996 and IEC 268-5:1989 methods of measurement for
main characteristics of loud speakers.