It is often asked, what is the active speaker, need to leave a power outlet at the position next to this speaker? How to connect a computer? Need to have another power amplifier... In fact, some people will ask the latter question, it is because everyone did not figure out what is the active speaker, what is the passive speaker.
As the name suggests, active speaker passive speakers (also known as active speakers, passive speakers), the "source" here does not refer to the signal source, but the power supply. Passive speakers can be seen as "wooden boxes plus speakers", which has the advantage that the sound is optimal and will not be disturbed. At the same time, the passive speaker is also a speaker without external power supply. It is connected with the power amplifier through the speaker cable, so that the speaker sounds. Most of the speakers in the home theater system use this way. Each speaker is connected to the power amplifier through the speaker cable, and the power amplifier is used to drive The speaker sounds.
General multimedia speakers are active, home theater speakers are passive (not absolute, some speakers are multimedia speakers to transition or to adapt to different needs, may be active, such as jbl CS5.1 is a Home theater speakers with post-amplifiers, what is the post-stage? Let's talk again.)
Passive speakers are usually behind two red and black binding posts
Active speakers are self-contained speakers. Most of the computer speakers we use are active speakers. For example, the general 2.0 speakers, only the main speakers and sub speakers, its built-in amplifier is placed in the main Inside the speaker, connect the power supply, connect to the source to sound, and if it is an active system with a subwoofer, the amplifier is placed in the subwoofer, and the satellite speaker sounds through the interface behind the subwoofer.
Active speakers have power supply design in the speaker cabinet
Teach everyone the simplest principle of discrimination:
Active speaker: Built-in power amplifier circuit that works with power and signal input.
Passive speakers: There is no power amplifier circuit inside, and an external power amplifier is required to work.
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