In addition, there are some professional recording monitor speakers with built-in power amplifier circuits and electronic crossover speakers that use built-in electronic crossover circuits and amplifiers can also be classified as active speakers.
Passive speakers are also called "passive speakers". Passive speakers are common speakers that we usually use without internal power amplifier circuits. Although passive speakers do not have amplifiers, they often have crossover networks and impedance compensation circuits.
Active speakers are usually marked with parameters such as the output power, input impedance and input signal level of the built-in amplifier. Active ultra-low speakers are also marked with the frequency characteristics of the input signal (such as full-band signal or low-frequency signal), low-pass filter characteristics and other parameters. Passive speakers are generally marked with parameters such as impedance, power, and frequency range.
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