Why Professional Speaker Manufacturers Burn High-Frequency Units

In numerous professional venues, such as studios and theaters,MeetingRooms, karaoke halls, etc., often present burned-out scenes.SpeakerThe phenomenon observed in the mid and high-frequency units.

SpeakerProper configuration with power amplifiers

Unexperienced tuners might assume that the excessive output power of the amplifier is the cause of the damage to the tweeter, but that's not the case. In professional settings,SpeakerOrdinary models can withstand a signal surge up to three times their rated power, and can instantaneously handle a peak surge up to five times their rated power without damage.SpeakerRated power at 1/2 of the power amplifier is problem-free. Therefore, it is not due to unforeseen strong shocks orMicrophoneExtended periodHowlHigh-power amplification often results in a rare occurrence of high-frequency units being burnt out.

As we all know,SpeakerNo content provided.Speaker，SpeakerThe power received is distributed differently at various crossover points. Figure 1 depicts the distribution of sound energy in nature; under normal conditions, each...SpeakerThe percentage distribution of power in units is shown in the pie chart. In the figure, a certain unit is...SpeakerPlease provide the Chinese content to be translated.

The frequency band is read from the horizontal axis, and the percentage difference corresponding to the vertical axis is the allocated power. For example, a split frequency point of 1.6kHz for a two-way crossover.Speaker(As shown in the attached image, point A), the high-frequency unit accepts 100%-78%=22% of the power, while the low-frequency unit accepts 78%-0%=78% of the power.

　SpeakerNo Chinese content provided for translation.SpeakerIdentify the highest pink noise power level, audiophile and consumer-gradeSpeakerThe symbols are somewhat ambiguous, but they all represent the total power of each unit. That is to say, ...SpeakerThe rated power refers to the power level of the simulated signal that pink noise or broadband can accept. A two-way speaker with a crossover frequency of 1.6kHz and a rated power of 100W.SpeakerAt full power rating, the bass unit is allocated 78W of output power, while the treble unit receives only 22W. Thus, the allocation of power...SpeakerApplying a 100W pink noise power or a standard program signal power, it can be received; however, when tested with a 100W single-frequency signal, both the high and low-frequency units may be damaged.

If a three-way speakerSpeakerIf the crossover point for mid and high frequencies is at 4kHz, the high-frequency driver will only receive 5% of the rated power. Improper power distribution can easily lead to damage of the high-frequency unit.

We understand that high frequencies are not predominant in ordinary human speech or musical signals. However, they are more common in metal instruments and stringed music.SpeakerThe power distribution ratio strictly conforms to the pattern shown in the attached diagram. It is divided into three bands.