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The composition of multimedia speakers-Alice factory

October 22, 2021

1. Interface part

It needs to have an interface part connected to the sound card in the computer case (if it is a USB speaker, it is connected to the USB interface of the computer). In this way, the sound signal output by the sound card can be introduced into the speaker amplifier. Usually the interface part is composed of a two-core shielded cable with a three-core plug at both ends (if it is a USB speaker, a special USB interface cable is required).

2. Amplifier

The second part is the amplifier. Its function is to amplify the weak audio signal sent by the sound card (or USB chip output) to make it enough to drive the speaker to sound normally. At the same time, the amplifier also has control functions, such as volume control, treble Bass gain and attenuation control, and some amplifiers have added sound field control, such as SRS.

3. Speaker

The last part is the speaker, which is responsible for turning the audio signal sent by the amplifier into sound waves. The speaker is composed of a cabinet (usually made of wood and plastic) and a speaker unit. If the amplifier and the speaker are independent, we We call this type of speaker a passive speaker: if the speaker and amplifier are assembled together (usually the amplifier is installed inside the speaker), we call this type of speaker an active speaker. The vast majority of multimedia speakers on the market are active speakers, because the manufacturing cost of active speakers is relatively lower than that of passive speakers. However, the sound quality of passive speakers (including independent amplifiers) is often higher than that of active speakers. If it is a USB speaker, a USB audio decoder and control part should be added to the multimedia speaker.

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We (Alice) are a manufacturer of professional audio signage, focusing on providing supporting services for the furniture industry, machinery industry, electronic and electrical industry and other industries, mainly producing zinc alloy, aluminum, stainless steel, copper, brass, pvc, etc. Label.

Contact us E-mail: sales03@alicelogo.com

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