1.信號分配的問題：在聲場內有幾組揚聲器的狀況下，常運用一臺平衡器將信號分配給多臺功放推進音箱。但同時也可能是不同企業型號的功放和音箱混在一同運用，這樣分配信號帶來很多問題，阻抗能否匹配，電平分配能否平衡，音箱所取得功率能否正常，以及用一臺平衡很難調整好聲場和音箱的頻率特性。
1. Problem of signal distribution: when there are several groups of speakers in the sound field, a balancer is often used to distribute the signal to multiple power amplifier propulsion speakers. But at the same time, it may also be that power amplifiers of different brands and models are used together with speakers. In this way, the distribution of signals brings many problems, such as whether the impedance can be matched, whether the level distribution can be balanced, whether the power obtained by speakers can be normal, and it is difficult to adjust the frequency characteristics of sound field and speakers with a balance.
2.平衡器的頻點調整問題：常見有燕子型山峰型波浪型三種頻譜波型狀，以上波形都是調音師人為想象的圖形，其實并不是聲場實踐需求的波形，
山東音響廠家認為理想的聲場頻率特性曲線應該是相對平整的，假如人為憑想象調整聲場頻率特性曲線，不可思議其結果是適得其反。
2. Frequency point adjustment of balancer: there are three common spectrum wave shapes: swallow type, peak type, wave type. The above waveforms are artificially imagined by the tuner. In fact, they are not the waveforms required by the sound field practice. Shandong sound manufacturers believe that the ideal sound field frequency characteristic curve should be relatively flat. If the sound field frequency characteristic curve is artificially adjusted by imagination, the result is counterproductive.
3.壓限器調整問題：常見是做擺設基本不起作用和作用過度起反作用。前者能夠湊合用，后者則會帶來嚴重影響系統的動態，表現為聲音發不出來，明顯表現是伴奏聲越強者聲就自然削弱使演唱者無所適從。
3. Adjustment of pressure limiter: common problems are that the decoration basically does not work and the excessive action has a reaction. The former can be used together, while the latter will seriously affect the dynamics of the system, which shows that the sound cannot be emitted. It is obvious that the stronger the accompaniment sound is, the sound will naturally weaken, making the singer at a loss.
4.系統電平問題：功放靈活度控制開關翻開缺乏，其次系統沒有做零電平調整。有時調音臺通道推一點點輸出已很大，這種狀況會影響系統的動態和失真度。
4. System level problem: the flexibility control switch of the power amplifier is not turned on, and then the system does not make zero level adjustment. Sometimes the output of the mixer channel is very large by pushing a little, which will affect the dynamics and distortion of the system.
5.低音信號處置：一種不做電子分頻用全頻信號直接給功放推進音箱；二種不知從系統何處提取低音信號做處置。假設不做電子分頻用全頻信號直接給功放推進音箱固然音箱有聲音也不于燒壞單元，但就其低單元發全頻聲音不可思議；但假如從系統中不恰當位置獲得信號也會給現場控制帶來不用要的費事。
5. Bass signal processing: a kind of full frequency signal directly to the power amplifier propulsion speaker without electronic frequency division; Second, I don't know where to extract the bass signal from the system for processing. Suppose we don't do electronic frequency division and use full frequency signal to directly push the loudspeaker to the power amplifier. Although the loudspeaker has sound, it won't burn the unit, but it's incredible to send full frequency sound on its low unit; However, if the signal is obtained from an inappropriate position in the system, it will also bring unnecessary trouble to the field control.
6.效果回路處置：應該取推子的后置信號，防止效果不受控惹起話筒嘯叫，返回有條件占用一路通道,這樣調試更便當。
6. Effect loop disposal: the post signal of the pusher should be taken to prevent the uncontrolled effect from causing the microphone to scream, and the return conditionally occupies a channel, so that debugging is more convenient.
7.線路銜接工藝：常見系統交流干擾聲大就是線路銜接工藝沒有做好形成的，還有系統中有均衡轉不均衡及不均衡轉均衡接法的一定要按規范銜接。另外不要用劣質接插件。
7. Line connection process: common system AC interference is loud because the line connection process is not well formed. In addition, if there are balanced to unbalanced and unbalanced to balanced connection methods in the system, it must be connected according to the specifications. In addition, do not use inferior connectors.
8.控制問題：調音臺是系統的控制中心，有時調音臺上的高中低EQ平衡做同等大幅度的提升或衰減則闡明系統并未調好，需求重新調試系統，不要過火調整調音臺的EQ。
8. Control problem: the mixer is the control center of the system. Sometimes the high, medium and low EQ balance on the mixer is increased or attenuated by the same magnitude, which indicates that the system is not adjusted well. It is necessary to re debug the system and do not adjust the EQ of the mixer too much.
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