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在擴(kuò)聲領(lǐng)域里，音響器材的配置是十分考究的，其中功放與音箱的配置是重要的，雖然，一些音箱生品使用說明中向用戶了所配功放的具體牌號(hào)或型號(hào)，但還是有局限性，因?yàn)橛脩艚?jīng)常面對(duì)諸多型號(hào)的功放，無從下手。下面山東公共廣播音響廠家就來為您講講公共廣播中功放與音箱的配置解決方式。

In the field of sound reinforcement, the configuration of audio equipment is very exquisite, among which the configuration of power amplifier and speaker is important. Although the instructions for the use of some speaker products recommend the specific brand or model of the power amplifier to users, there are still limitations, because users often face many models of power amplifier, and have no way to start. Next, Shandong public broadcasting audio manufacturer will tell you about the configuration and solution of power amplifiers and speakers in public broadcasting.

功放與音箱的配置所涉及的方面很多，例如功放牌號(hào)、功率管類型的選擇及低靈敏度音箱應(yīng)配置哪種功放等。功放與音箱的具體配置，一般來說與設(shè)計(jì)人員的經(jīng)驗(yàn)、愛好、聽音習(xí)慣等因素有關(guān)，很難找到一個(gè)統(tǒng)一的標(biāo)準(zhǔn)。

The configuration of power amplifier and speaker involves many aspects, such as the selection of power amplifier brand, power tube type and which power amplifier should be configured for low-sensitivity speaker. The specific configuration of power amplifiers and speakers is generally related to the experience, hobbies, listening habits and other factors of designers. It is difficult to find a unified standard.

有時(shí)我們會(huì)遇到一些用戶或設(shè)計(jì)人員為了節(jié)省開支常給音箱配置較小功率的功放，有些用戶又為了所謂的"功率儲(chǔ)備充足"給音箱配置很大功率的功放。顯然，這樣做都是不合適的。重要的是，這樣配置會(huì)給設(shè)備造成損壞。在功放與音箱配置中，功放功率的確是關(guān)鍵，也就是說，功放功率的確定原則應(yīng)該是統(tǒng)一的。

Sometimes we will encounter some users or designers who often configure the speaker with a smaller power amplifier to save money, and some users configure the speaker with a large power amplifier for the so-called "sufficient power reserve". Obviously, it is inappropriate to do so. It is important that this configuration will cause damage to the device. In the configuration of power amplifier and speaker, the power of power amplifier is indeed the key, that is to say, the determination principle of power amplifier should be unified.

功放與音箱的功率配置與目標(biāo)響度以及所使用場(chǎng)合也有一定的關(guān)系。在一定目標(biāo)響度下，應(yīng)該讓音樂信號(hào)的動(dòng)態(tài)在每件器材上都能得到充分的保證，如果功放功率太大，其增益設(shè)置很小時(shí)，響度已達(dá)到要求，但這時(shí)功放的增益就限制了信號(hào)的動(dòng)態(tài)范圍。所以，功放功率不能太大；否則，既然浪費(fèi)開支，又會(huì)帶來響度和音樂動(dòng)態(tài)無法兼顧以及音箱負(fù)荷過重的麻煩。

The power configuration of power amplifier and speaker is also related to the target loudness and the use occasion. Under a certain target loudness, the dynamic of the music signal should be fully guaranteed on every device. If the power amplifier is too large and its gain setting is too small, the loudness has reached the requirements, but at this time the gain of the power amplifier limits the dynamic range of the signal. Therefore, the power amplifier should not be too large; Otherwise, since the expense is wasted, the loudness and music dynamics cannot be taken into account and the speaker is overloaded.

根據(jù)以往經(jīng)驗(yàn)，一般語(yǔ)言、音樂擴(kuò)音場(chǎng)所和大動(dòng)態(tài)的迪廳等場(chǎng)所是有區(qū)別的。有一般擴(kuò)音場(chǎng)所信號(hào)起伏小，不需要功放長(zhǎng)時(shí)間或很快提供很大電流給音箱，所以功放功率應(yīng)該比要求強(qiáng)勁有力的大動(dòng)態(tài)擴(kuò)音場(chǎng)所的功率要小；另外，所謂的"功率儲(chǔ)備"也應(yīng)該針對(duì)音箱而言，值得注意的是，功放的選定須由音箱決定，不應(yīng)該有"功率儲(chǔ)備"的概念去配置功放。

According to past experience, there are differences between general language, music amplifying places and large dynamic discos and other places. There is little signal fluctuation in general public address places, and it is not necessary for the power amplifier to provide a large amount of current to the speaker box for a long time or soon, so the power of the power amplifier should be smaller than that of the large dynamic public address places that require strong power; In addition, the so-called "power reserve" should also be targeted at the speaker. It is worth noting that the selection of power amplifier must be determined by the speaker. There should be no concept of "power reserve" to configure the power amplifier.

在一定的目標(biāo)響度下，音箱可以比設(shè)計(jì)值大一些，以備不同用途，而功放的功率應(yīng)該嚴(yán)格由音箱決定，沒有太大的靈活性?？傊?，功放與音箱功率配置的具體標(biāo)準(zhǔn)應(yīng)該是：

At a certain target loudness, the speaker can be larger than the design value for different purposes, and the power of the power amplifier should be strictly determined by the speaker, without much flexibility. In short, the specific standards for power allocation of power amplifier and speaker should be:

在一定阻抗條件下，功放功率應(yīng)大于音箱功率，但不能太大。在一般應(yīng)用場(chǎng)所功放的不失真率應(yīng)是音箱額定功率的1.2-1.5倍左右；而在大動(dòng)態(tài)場(chǎng)合則應(yīng)該是1.5-2倍左右。參照這個(gè)標(biāo)準(zhǔn)進(jìn)行配置，既然能保證功放放在佳狀態(tài)下工作，又能保證音箱的，即使對(duì)經(jīng)驗(yàn)不足的操作人員，只要不是操作嚴(yán)重失誤或前級(jí)周邊設(shè)備調(diào)校不當(dāng)，就能讓音箱和功放工作在穩(wěn)定狀態(tài)。更多相關(guān)內(nèi)容就來我們網(wǎng)站http://gulfbaader.com咨詢！

Under certain impedance conditions, the power of the power amplifier should be greater than the power of the speaker, but not too large. In general applications, the distortion rate of power amplifier should be about 1.2-1.5 times of the rated power of the speaker; In large dynamic situations, it should be about 1.5-2 times. The configuration according to this standard can ensure that the power amplifier works in a good state and the safety of the speaker. Even for inexperienced operators, as long as it is not a serious error in operation or improper adjustment of the previous peripheral equipment, the speaker and power amplifier can work in a stable state. Come to our website for more relevant content http://gulfbaader.com consulting service