Sound Effects By Permanent Magnet

The atomic structure of permanent magnet is special. Its atom itself has a magnetic moment. Generally speaking, these mineral molecular in disorder, magnetic regions influence each other and can not appear the magnetic. But molecular orientation tend to the same with external force. It will also show the magnetic.
The most common application of the permanent magnet is sound. It will affect the effect of stereo speakers directly. We will offer three reasons of small volume as followings:
Firstly, the speaker performance is bad and magnetic of the magnet  decline. As we all known, the speaker sensitivity is mainly depends on the magnetic, quality of paper basin and assembly process. We can use the ferromagnetic object to touch the magnet. Then roughly estimate the strength of magnet magnetic according to the size of attractive force. You should only replace the speaker if the magnetic too weak.
Secondly, divider anomaly. The corresponding frequency band of signal will be blocked if the element is poor in the frequency divider. So we need to focus on the check is not a short circuit. Frequency inductance coil is interlayer short circuiting.
At last, magnetic core is loosen. We suggest that you can use your hand press the paper basin gently in maintenance. It may be the voice coil is pressed by stem if not move.