Multimedia speakers composed by the above description

we know how to work Multimedia Speaker , then we can easily know some multimedia speakers is part of it. First, it needs to have an interface with the computer chassis portion connected to the sound card ( if it is USB speaker is connected to the computer 's USB port ) . The sound signal so as to introduce the speaker sound output amplifier. The interface is usually part of a three-pin plug both ends two- conductor shielded cable composition ( if it is USB speakers , you need a dedicated USB interface cable ) . The second part is the amplifier , its role is sent to the sound card ( or USB chip output ) weak audio signal to be amplified, making enough to push the speaker sound normal , but also both the amplifier control functions , such as controlling the volume , treble bass gain and attenuation control , there are some added amp sound field control , such as SRS. The last part is the speaker , and it is responsible for the audio signal sent by the amplifier into sound waves, speaker cabinet is made ( usually made ​​of wood and plastic ) and speaker units, if the amplifier and speakers are independent , we this speaker is said to passive speaker : If speaker and amplifier are assembled together ( usually in the speaker amplifiers are installed inside ) , we call this speaker is powered speakers . Multimedia speakers currently on the market for the vast majority of speakers, because manufacturing costs are relatively lower than the active passive speakers . However , the sound quality is often passive speakers (with separate amplifiers ) than active speakers . If the USB speakers, multimedia speakers is necessary to increase the USB audio decoder and control section.