What Are Passive Speakers?

It is also called power frequency division . It uses the LC filter in the speaker to divide the audio signal. The frequency divider network is set between the power amplifier and the speaker. The power audio signal output by the power amplifier is divided into different frequency bands and distributed to each speaker through a ratio filter. The passive frequency division method is simple, low cost, and easy to use. The disadvantage is that the frequency division network needs to flow a large current, so a large volume of inductor is used. Moreover, because its parameters are directly related to the speaker impedance, the speaker impedance It is a function of frequency, which deviates greatly from the nominal value, so the error is large and adjustment is difficult.

Passive crossover

Right!

It is also called power frequency division . It uses the LC filter in the speaker to divide the audio signal. The frequency divider network is set between the power amplifier and the speaker. The power audio signal output by the power amplifier is divided into different frequency bands and distributed to each speaker through a ratio filter. The passive frequency division method is simple, low cost, and easy to use. The disadvantage is that the frequency division network needs to flow a large current, so a large volume of inductor is used. Moreover, because its parameters are directly related to the speaker impedance, the speaker impedance It is a function of frequency, which deviates greatly from the nominal value, so the error is large and adjustment is difficult.