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How to distinguish between active and passive speakers?

2021-08-13 32
Active speakers are also called "active speakers". Usually refers to speakers with power amplifiers, such as multimedia computer speakers, active subwoofers, and some new home theater active speakers. Since the active speaker has a built-in power amplifier circuit, the user does not need to consider the problem of matching with the amplifier, and it is also convenient to directly drive with a lower level audio signal.
In addition, some professional recording monitor speakers with built-in power amplifier circuits and electronic crossover speakers with built-in electronic crossover circuits and amplifiers can also be classified as active speakers.


How to distinguish between active and passive speakers?


Passive speakers are also called "passive speakers". Passive speakers are ordinary speakers that we usually use without power amplifier circuit inside. 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 subwoofers are also marked with input signal frequency characteristics (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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