Press the horn switch, if the speaker sometimes ring, sometimes not ring, more than the inner contact of the switch is not good, the use of too long, the contact gap increases.
Can try to adjust the adjusting nut on the horn, such as the phenomenon can not be ruled out, is the quality of the horn, the need to replace the speaker.
可以试着调节喇叭上的调节螺母，如现象还不能排除，是喇叭质量的问题，需要更换喇叭。
3
Speaker compact size is ideal for semi-concealed installation option... After "CDM" high frequency horn coverage matches the design of coverage and low frequency unit features a smooth over-achieved.