音響功能盡可能齊全，使用方便，外觀華麗。購買之后也不需要用戶花很多的時間去進行調試，一般來說直接就可以使用，在操作上較為方便，功能性也比較齊全。那么要如何選購舞臺音響呢？需要相應原則堅持！
The sound function shall be as complete as possible, easy to use and gorgeous in appearance. After purchase, users do not need to spend a lot of time on debugging. Generally speaking, it can be used directly. It is more convenient in operation and has complete functionality. So how do you choose a stage stereo? Need to adhere to corresponding principles!
堅持實用的原則。
Adhere to the principle of practicality.
嚴格地講，每一樣成型了的質量過硬的產品都是實用的產品，但是實用的產品不等于什么地方場合都實用，它必須在一定的場合，配合一定的其它設備才能稱為實用，否則只能是浪費、閑置。例如：設計中要未的聲壓和電聲功率確定后，功放和音箱的功率也應該以此為依據，參考不同的用途適當增加一些.如果不考慮計算結果，照著大功率型號來選取，這就是不實用。
Strictly speaking, every formed product with excellent quality is a practical product, but a practical product does not mean that it is practical everywhere. It can be called practical only when it is combined with certain other equipment on certain occasions, otherwise it can only be wasted and idle. For example, after the sound pressure and electroacoustic power to be determined in the design, the power of the power amplifier and speaker should also be based on this, with reference to different uses It is impractical to choose according to the high-power model without considering the calculation results.
堅持適用的原則。
Adhere to applicable principles.
同樣要說具體的哪一個設備是否適用，是不太確切的，只能說某個設備的選用不適合某一個具體的場合二適用性主要取決于工程的用途和特點。與實用性不太一樣的是，選型實用性不高，設備也許還偶爾用得著；要是適用性不好的話，設備基本上是浪費。
Similarly, it is not accurate to say whether a specific equipment is applicable. It can only be said that the selection of a certain equipment is not suitable for a specific occasion. II. Applicability mainly depends on the purpose and characteristics of the project. Different from the practicality, the model selection is not practical, and the equipment may be used occasionally; If the applicability is not good, the equipment is basically a waste.
例如：為一個娛樂用的歌舞廳配備專來錄音用的8軌錄音機，似乎就不太適用；為一個面積不大的舞臺設置大型演出用的子500W迫光或1000W的星空燈，同樣也是不適用。要避免不適用的錯誤，不光需要設計人員對多數設備的特點有的了解，而且需要在工程的設計選型中充分向用戶進行設備性能的介紹。
For example, it does not seem appropriate to equip a song and dance hall for entertainment with an 8-track recorder specially for recording; It is also not applicable to set 500W forced light or 1000W star lights for large-scale performances for a small stage. To avoid inapplicable errors, designers need not only to have a comprehensive understanding of the characteristics of most equipment, but also to fully introduce the equipment performance to users in the design and selection of the project.
要保持設備檔次性能的一致性。
The consistency of equipment grade and performance shall be maintained.
具體講就是：在所焦的一系列
山東舞臺音響燈光設備中，基本上應該使它們的風格一致，價位相當，性能統一，或者說般配。因為許多產品都有一些與之有較好搭配的相關設備，而且這些搭配方式都經過了許多人士的檢驗，所以要做到“般配”這點并不難，是設計人員要有豐富的經驗，否則只能是憑感覺去選配，這樣就難免有不統一的地方。
Specifically, in the series of Shandong stage audio and lighting equipment, they should basically have the same style, the same price, the same performance, or a good match. Because many famous products have some related equipment that are well matched with them, and these matching methods have been tested by many professionals, it is not difficult to achieve "matching". It is necessary for designers to have rich experience, otherwise they can only choose according to their feelings, which will inevitably lead to inconsistencies.
既然明確了音響的使用地點和使用目的，因此我們可以初步判斷臺式音響大部分情況是播放電臺、流行音樂等人聲內容，因此對于音響的音箱工作頻段不必要求過低。通常音響系統低的表現頻率可以選定在40Hz以上，當然這是對于每只音箱僅有一只單元而言的。如果每只音箱可以保證兩只單元(也有同軸音箱高低音相嵌在一起的音箱)，那么聲音效果將會完善許多。就好像一件樂器始終不如一支樂隊的表現力更強一樣。
Since the use place and purpose of professional audio are clearly defined, we can preliminarily judge that most of the desktop audio is playing radio, pop music and other human voice content. Therefore, the working frequency band of the audio box need not be too low. Generally, the low performance frequency of the sound system can be selected above 40Hz. Of course, this is for each speaker with only one unit. If each speaker can guarantee two units (there are also coaxial speakers with high and low tones embedded together), the sound effect will be much better. It's like an instrument is always less expressive than a band.
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