【 Weak current College 】 how to avoid damage and burning speakers

Most people will think that is the volume too loud speakers will not stand so that the speaker had broken, not necessarily, there are many conditions can, moreover, has the wrong concept. Now they are cited several cases and reasons that let you avoid speaker damage and burn hazard. First of all we would like to correct a mistake that many people think that power amplifier power is greater than the speaker's power, would make the speaker burning, this is wrong. But because the amplifier's power is less than the speakers before burning the speakers. This is a power not enough time waveform distortion resulting Crest, which produced the DC component, if you find that speakers when powered on, a noise and undulation on the cone loudspeaker with DC components. Has the DC component of the voice coil is hot, it is burned. Some people may ask: what power amplifier power large speakers? this is to tell everyone that the volume gain must control, when debugging a foot do not exceed the maximum value of the speakers, speaker-stroke when light is too large, heavy damage to speakers, so that the broken cone loudspeaker with. The crossover point treble must be accurate, automobile treble General in 3000-3500HZ, if frequency point is too low, the low-frequency components, treble will heat consumed. Further work on the treble, it is necessary to have the treble protection circuit, absorb the extra power, otherwise the volume is too large, transient current is too large to be destroyed in the treble. Please remember that the volume is composed of small to large and slowly add, don't breath. Volume too loud certainly appear distorted easily damaged speakers, another case is that this will damage the speakers. Recommended fondness large volume consumers to purchase power amplifier, speaker power eat, without distortion in the circumstances. Amplifier if DC output, it will burn the bass speakers, even a very small number of treble speakers will burn. Because bass (or other audio) speaker partials path no capacitor isolation DC, DC output is like the direct access to speakers, even by the damper windings made grilled together. So when purchasing power, they should be careful to use meters to measure the fore and back-level output for DC output, if the first-level DC output is also possible through the back-stage and then enlarge the output DC incoming speakers. This is to remind you, don't buy no brands, no quality assurance of the amplifier, low power amplifier. If you have not found this situation, it may burn your advanced speakers.