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AV放大器又称家庭影院放大器,是连接信号源与音箱系统之间的重要桥梁,一方面接收来自信号源的视频信号与多声道音频信号并进行解码、处理与传输,另一方面,将处理过的音视频信号传送给家庭影院投影机与家庭影院音箱。因此AV放大器是整个家庭影院系统的中枢,占据着重要的作用。AV放大器根据工作方式的不同,可以分为前级环绕声处理器、后级功率放大器与合并式放大器。前级环绕声处理器主要负责音视频信号的解码处理与一部分的放大处理,后级功率放大器主要是实现信号的放大与音箱驱动,而合并式放大器则是这两者的合并,既有解码功能也有放大驱动的能力。一般情况下,并无太大要求的普通用户,选择合并式AV放大器已经能满足绝大部分的功能需求,如果发烧级玩家对于声画有更高的要求,则多以一台前级处理器搭配一台或多台单声道、双声道或者多声道后级放大器的形式。
AV amplifier, also known as home theater amplifier, is an important bridge between the signal source and the speaker system. On the one hand, it can receive, decode, process and transmit the video signal and multi-channel audio signal from the signal source. On the other hand, Over audio and video signals to home theater projectors and home theater speakers. Therefore, the AV amplifier is the backbone of the entire home theater system, occupy an important role. AV amplifier according to the different working methods, can be divided into pre-surround sound processor, the latter stage power amplifier and the combined amplifier. Front surround sound processor is mainly responsible for the decoding of audio and video signals and part of the amplification process, the latter stage of the power amplifier is mainly to achieve signal amplification and speaker drive, and the merged amplifier is the combination of both, both decoding There is also the ability to zoom in. Under normal circumstances, not too much of the average user, the choice of integrated AV amplifier has been able to meet most of the functional requirements, if the enthusiast players have higher requirements for the sound and pictures, then more to a pre-processor With one or more mono, two-channel or multi-channel amplifier in the form of post.