The tweeter is the weakest component in audio, and audio of any level is not immune. When the speaker unit burns in, the tweeter is often damaged first, and the probability of burning out the woofer is lower. So, what is the reason why the tweeter unit is easy to burn out?
Unreasonable matching of audio equipment and power amplifier
Improper power distribution can easily cause the speaker unit to burn out. For example, a two-way speaker with a crossover point of 1.6kHz and a rated power of 100W. At the rated power, the woofer can be allocated to 78W of output power, while the tweeter is only allocated to 22W. At this time, 100W is applied to the speaker It can withstand the power of pink noise or ordinary program signal power; but when using a single-frequency signal of 100W to test, both the treble and woofer are extremely easy to damage.
Under normal circumstances, if the power of the power amplifier is insufficient and the signal is overloaded, the high-order harmonic components will increase sharply, which greatly increases the proportion of high-frequency components in the signal, which in turn causes the high-frequency spectrum energy in the signal to be far away. Exceeding the power that the tweeter can withstand, resulting in overload and damage to the tweeter!
Improper use of divider
When using a frequency divider, you need to select a reasonable crossover point in strict accordance with the working frequency range of the speaker provided by the manufacturer. If the crossover point of the tweeter is selected too low and the power load is too heavy, it is easy to cause the tweeter unit to burn out.
Improper adjustment of the equalizer
The frequency equalizer is set to compensate for the various defects of the indoor sound field and the uneven frequency of the speakers. It is recommended to use an actual spectrum analyzer or other instruments for debugging. The transmission frequency characteristic after debugging should be relatively flat within a certain range. However, a tuner who does not have sound knowledge can adjust it at will, and raise the high frequency and low frequency part of the equalizer too high, forming a "V" shape. Lead to the phase distortion caused by the equalizer, which can easily cause the audio tweeter to burn out.
