What do you know about Active speakers?

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What do you know about Active speakers?

Active speakers are also known as "Active speakers". Usually refers to speakers with power amplifiers, such as multimedia computer speakers, active subwoofers, and some new home theater Active speakers. On the other hand, passive speakers are also called "passive speakers".

What is the structure of Active speaker?

How to choose an Active speaker?

Why are Active speakers more and more popular?


What is the structure of Active speaker?

To talk about what is an Active speaker, we must first talk about the composition of the audio system. The simplest audio system consists of 3 links: audio source, power amplifier and speakers. The sound source refers to sound playback equipment such as radio, deck, CD player, VCD, DVD, MP3, etc. For a computer, both the CD-ROM and the sound card are audio source devices. Generally, the output voltage of the audio source device is relatively small, ranging from hundreds of millivolts to two volts. If it is directly connected to the speaker, the sound may be very small or even silent at all. And because the impedance of the speakers is generally very low, most of them are between 4 and 8 ohms, and the impedance of some specially designed speakers is even less than 2 ohms in some bands, which is close to a short circuit, which can easily overload the audio source equipment. It may even cause damage to the audio source equipment. Therefore, a power amplifier (referred to as power amplifier) must be added between the sound source and the speaker to amplify the weak signal output by the sound source, so that the speaker emits enough volume. At the same time, the power amplifier has a high input impedance (usually tens of thousands of ohms) and a low output impedance (a few tenths of an ohm), which can play a buffering role between the audio source and the speaker without overloading the audio source device.


How to choose an Active speaker?

Active monitor speakers, with HiFi parameters (+/-3db), are real HiFi speakers, monitor speakers. Without HiFi parameters, it is not HiFi sound quality. For example, the frequency response is 50hz-25khz, and there is no HiFi parameter, it is an ordinary speaker. Also look at the bass, subwoofers below 40 Hz are good, but the price is more expensive.


Why are Active speakers more and more popular?

In recent years, whether it is a large-size TV or a smart projection device, the price has become more and more "close to the people", and the visual effects have become more and more shocking. Many young people are also happy to build their own home theater at home. However, due to the impact of volume, the sound effects of TVs and projectors are often difficult to reach the theater level, so if you want to create a perfect and comfortable home audio and video system, you naturally need to prepare a set of professional audio equipment, such as Active speakers. , thereby enhancing the overall sense of presence and immersion.


Davecl Industrial CO., LIMITED, which has been established for over ten years, focuses on the production of Active speakers. Here, you can find the Active speakers you need.


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