4 inch car speaker with PP drum paper

4 inch car speaker with PP drum paper

Further, when the horn button, you can use a multimeter or viewing light to see, to see there is no electricity flow channel to the speaker terminals, and if there is current to the terminals, but the horn did not sound, the use is located inside the horn adjusting nut to adjust:
1, will adjust the speaker fixing screw nut loosen, then turn about adjusting nut. The direction of rotation will vary depending on the speaker's performance varies, it is difficult to say which side to turn, but must be rotated a little bit, and then try to see the horn, then further rotation.
2, the best place in the horn fixed adjustment nut.
3, the fixed nut screw fixed.
4, if the volume is insufficient, connect the speaker to the voltage measuring terminals, and battery voltage is compared, if the voltage is low, then, to examine the connection point and the line wiring.

After more testing, speakers do not sound basic situation can be resolved, usually pay attention to the poor contact contact erosion and joint problems, speaker fails seek professional technicians try to help, do not blindly replace the speaker, the speaker should select Note.