What devices can damage a loudspeaker and how can I avoid damaging and burning it?

Hammers, axes, stones, flying feet.

Most people will think that the loudspeaker will not be able to stand it if the volume is turned on too loudly, so the speaker will be damaged, but in fact, there are many situations that can be used, and there is a wrong concept.

Here are a few of the circumstances and reasons why you can avoid the danger of your speakers being damaged and burned.

First of all, we want to correct a misconception, many people think that the power of the amplifier is greater than the power of the speaker, which will cause the speaker to burn out, which is wrong. Rather, it is because the power of the amplifier is less than that of the speaker, which will burn the speaker. This is when the power is not enough, the waveform distortion produces a top cut, which produces a DC component, if you find that the speaker is turned on, there is a sound and the cone has ups and downs, it means that there is a DC component.

If there is a DC component, the voice coil will heat up, which is the cause of burning. Some people will ask: what happens to the speakers when the amplifier is powerful?

This is also a point to tell you, the volume gain must be well controlled, and the sound bucket fiber should not exceed the maximum value of the speaker when debugging, otherwise the speaker stroke will be too large when it is light, and the speaker will be damaged, and the cone will be damaged when it is heavy. The crossover point of the treble must be accurate, the car treble is generally in 3000-3500hz, if the crossover point is too low, there is a low-frequency component, the treble will be heated and burned. If you use the tweeter pushed by the power amplifier, you must have a treble protection circuit to absorb excess power, otherwise when the volume is too large, the transient vertical current will be too large, which will burn the treble.

Don't forget to increase the volume slowly from low to high, and don't turn it up in one go.

Turning on the volume too loud will certainly distort and easily damage the speaker, and another situation is that this situation will also damage the speaker. It is recommended that users who like high volume should choose a high-power amplifier to make the speaker full of power and work without distortion. If the amplifier has a DC output, it will definitely burn out the woofer, and even a very small number of tweeters will burn out.

The reason is that there is no capacitor to isolate DC on the crossover path of the bass (or other sound circuit) speaker, and the DC output is like passing DC power into the speaker, and the crossover coil is burned black.

Therefore, when purchasing a power amplifier, you must pay attention to the power meter to measure whether there is DC output at the output end of the pre-amp and post-amp, and if the pre-amp has DC output, it is also possible to amplify the output through the post-amp to send the direct stream to the speaker. This is also a reminder to everyone, don't buy power amplifiers without brand, no quality assurance, cheap power amplifiers. In case you don't notice this, you might burn your premium speakers.