Family cinema and HI-FI sound

From the definition of distinction
Hi - Fi is the abbreviation of Hight English - Fidelity, translation, it is required to high-fidelity audio equipment in the replay process, the indexes of voice signal processing, no distortion, amplify sound to restore the original visage is specially used for authentic music appreciation. AV audio power amplifier, just as its name implies A (the) says audio, audio, video (V), therefore, wav audio power amplifier is collected audio and video signal processing of two kinds of audio amplifier, emphasize the acoustic environment, specially for family cinema.
The emphases
These two kinds of power amplifier, due to the different emphasis in the technical index, acoustic environment, channel number, the circuit design, etc. 1, the technical indexes of different hi-fi Hi - Fi amplifier main technical indexes of output power, harmonic distortion, signal-to-noise ratio, the frequency range, rated impedance and damping coefficient etc, especially emphasized the harmonic distortion and signal-to-noise ratio, etc. And although has the AV amplifiers, but more emphasized track isolation, delay time limits, various acoustic model (DSP system, household THX system, dolby AC - 3 system), and other parameter is much related AV amplifier video parts. 2 and acoustic environment in different Hi - Fi amplifier with hi-fi more loudly way for the design purpose, exquisite closed-caption transcripts to enlarge the signal from the source, and is mainly used in music appreciation and pursuit of voices, true voice. And in the manner is lifted AV amplifier is designed for main field construction, emphasize the voice performance simulation environment, to reproduce the atmosphere, such as cinemas, hall, churches, stadium, studio, etc. 3 and let the sound track number in different Hi - Fi amplifiers are playback for two channels, namely amplification left and right of the signal, and two channels promoting left, right, two groups of stereo speakers, constitute the field. But there are AV amplifier 4-9 road, promoting road, forming a sound field around, for example: dolby AC - 3 to 5.1 channel (left, right, left, and right around and around heavy bass). 4 and circuit design is different from the circuit design or circuits, two amplifiers have bigger difference. First, hi-fi Hi - Fi amplifier circuit is simple, signal processing program, merely amplifying circuit and switching, adjust the combination, AV amplifier circuit than Hi - Fi amplifier circuit and decoding much delay, etc., and also reverberation circuit for most signals, thus put a high degree of integration, the circuit, signal processing program more complex. Secondly, AV amplifier circuit on video and constitute circuit.