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汽車音響的主要組成部分是主機、功放和揚聲器。汽車音響的主機好壞最直接的就是看它的技術指標，絕大多數為音樂功率，在４０Ｗ～６０Ｗ之間，功率越大越好，人耳所能聽到的頻率范圍在２０ＨＺ～２０ＫＨＺ之間，因此該指標最少要達到這個數值，而且越寬越好，音樂信號和噪聲的比例，高檔汽車音響多在９０ＤＢ以上，數值越大越好，功放是音響系統的心臟，功放的功率大小，質量的好壞對音樂的播放起著至關重要的作用。

1、好的汽車音響喇叭要求磁鋼相對較大且重，支架結構牢實，連接的地方，包括紙冒，紙盆，連接線涂的膠水都非常均勻，完整。
Good car stereo speakers require relatively large and heavy magnets, support structure real prison, connecting places, including paper run, cone, cables are very uniform coating of glue, and complete.
2、好的汽車音響喇叭紙盆均勻地上下活動，且受力均勻，最好是純手工工藝，最重要的還是聽，聽是體現汽車喇叭效果最直接的方式方法。
Good car stereo speakers cone evenly up and down, and even by force, it is best handmade craft, the most important thing is to listen, to hear car horns effect is a manifestation of the most direct ways.
3、首先功放的功率應與喇叭的功率相搭配；其次應該選擇有內置分頻器的功放，這樣使系統可自由對功放和揚聲器進行組合，同時也使得整套系統的音質能夠提高。選購時還要注意盡量選擇足夠大的散熱器，來保持正常散熱。
First, the power amplifier and speaker power should be matched; secondly should choose a built-in amplifier crossover, so the system can be freely combined for amplifiers and speakers, but also makes the quality of the entire system can be improved. Also note that when you try to choose the optional heat sink is large enough to maintain proper cooling.

濟南汽車音響升級：http://www.szanyuda.com/