济南音响能将电信号变换为声信号从而让人耳能够听到声音，是家庭影院或立体声重放装置中最为重要的一个组成，不仅在总的投资比例上占据较多的份额，而且还是济南音响和AV器材中最难于选购的一种。只要我们在选购时注意以下原则，选购一款能够满足自己需求的济南音响也并非难事。
Ji'nan audio will be able to transform signals into acoustic signals so that the human ear can hear the sound, the family theater or stereo playback device is one of the most important, not only to occupy more market share in the total investment ratio, but also a kind of or Ji'nan sound and AV equipment in the most difficult to buy. As long as we pay attention to the following principles when the choose and buy, buy a can meet their needs of Ji'nan sound is not difficult.
一、音调自然平衡
A natural balance, tone
首先，济南音响的声重放应当真实。重放出的人声和器乐声应尽可能接近于原声而不太走样。这一方面，或许主要是标准便是应该有精确的音高平衡。听到的声音应该平滑而无声染，没有听得出的最强音和最弱音。
First of all, sound reproduction Ji'nan sound should be true. From a vocal and instrumental sound should be as close as possible and not too out of shape to the original sound. This on the one hand, perhaps is the main standard is there should be a balance accurate pitch. Hear the voice should be smooth and silent dye, not the strongest voice heard and the piano.
中频段和高音不应过于响亮或憋着而放不开。可找些频率范围宽阔的器乐（比如钢琴曲）录音来放放。注意听低、中、高音阶时音色的变化情况。
The midrange and treble should not be too loud or hold and put away. Can find some wide frequency range (such as instrumental music piano recordings) to put. Pay attention to the low, in order, treble tone when changes.
济南音响箱体内各发音单元协调结合得好、箱体和分频网络设计又良好且散射特性不错的音箱，音响效果要比设计有些缺陷的音箱好得多。
Ji'nan sound box body all pronunciation unit coordination with well, a box body and a crossover network design and good and scattering characteristics of a good speaker, sound effects than design some defects of speakers is much better.
二、声音特性
Two, the sound characteristics
虽说济南音响的总体放声特性至关重要，但好的音箱在以下一些特殊场合下同样应有良好的表现：
Although the essential characteristics of Ji'nan sound overall burst, but a good speaker in the following special occasions also should have good performance:
频率平衡：可依次试听不同频段的声音。听到的低音应当紧凑，清晰，音调确切，不嗡嗡作响，不拖泥带水或含混不清；而作为音乐主要部分的中音段则更为重要，人声和器乐声应自然，有细节，不得过响或发闷声，也不能过亮或过轻，高音则应开阔，有空气感和延伸性，无尖叫或衰落的现象。
Frequency balance: can in turn audition of different frequency sound. Hear the bass tones should be compact, clear, exact, do not do things sloppily or buzzing, not ambiguous; and as the main part of the music midrange segment is more important, vocal and instrumental sound should be natural, have the details, not too loud or muffled sound, also not too bright or too light, soprano should be open, a sense of air and extensibility, no screaming or fading phenomenon.
解析力：仔细聆听能否听到音乐中的细节，比如钹音或钢琴声的衰落，音乐厅或爵士俱乐部中的堂音。如果低电平的细节听不太清，便说明音箱缺乏透明度。为了对真实又令人满意的重放效果，低电平下的解析力是至关重要的。这也是好的音箱与蹩脚的音箱的差别。
Resolution: listen carefully can hear music in detail, such as cymbals sound or sound of the piano's decline, a concert hall or a jazz club in the church music. If the low level details can't hear you clearly, he would explain the lack of transparency, sound box. In order to playback effect on real and satisfactory analytical capacity, low level is crucial. This is a good speaker and poor speaker differences.
瞬态响应：济南音响 http://www.jnzqyx.com/ 应能复现音乐中的瞬态。刚敲击弦响鼓或刚强拨吉它时的声响应有力度和听来确切，不能让人"吃惊"、"激动"或者是"慢吞吞"和有"迟钝"之感。此外，自然衰落的声音，比如钹音和语声的"拖尾"，则应当逐渐衰减而应嘎然而止。动态范围：应当对比在低电平和高电平动态时的声重放情况。理想的是，音箱应能从对最低的声音到最强的管弦乐段场能能连续地予以重放，不会让寂静部分听不清或是很响的段落时会有些力不从心。
Transient response: Ji'nan sound should be able to reproduce music in transient. Just tap the string sound loud drum or strong dial should strength and electric guitar sounds exactly, can't let people "surprise", "emotion" or "slow" and "slow" feeling. In addition, the natural decline of the voice, such as cymbals sound and voice of the "tail", it should be gradually decay and should be stopped. Dynamic range: should contrast at low level and high level dynamic sound playback conditions. Ideally, speakers should be able to voice from the lowest to the strongest orchestral section field can be replayed continuously, will not let the silence part could not hear or loud passages will be there too.