1.信号分配的问题：在声场内有几组扬声器的状况下，常运用一台平衡器将信号分配给多台功放推进音箱。但同时也可能是不同公司型号的功放和音箱混在一同运用，这样分配信号带来很多问题，阻抗能否匹配，电平分配能否平衡，音箱所取得功率能否正常，以及用一台平衡很难调整好声场和音箱的频率特性。
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.平衡器的频点调整问题：常见有燕子型山峰型波浪型叁种频谱波型状，以上波形都是调音师人为想象的图形，其实并不是声场实践需求的波形，
山东音响厂家认为理想的声场频率特性曲线应该是相对平整的，假如人为凭想象调整声场频率特性曲线，不可思议其结果是适得其反。
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.压限器调整问题：常见是做摆设基本不起作用和作用过度起反作用。前者能够凑合用，后者则会带来严重影响系统的动态，表现为声音发不出来，明显表现是伴奏声越强者声就自然削弱使演唱者无所适从。
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.系统电平问题：功放灵活度控制开关翻开缺乏，其次系统没有做零电平调整。有时调音台通道推一点点输出已很大，这种状况会影响系统的动态和失真度。
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.低音信号处置：一种不做电子分频用全频信号直接给功放推进音箱；二种不知从系统何处提取低音信号做处置。假设不做电子分频用全频信号直接给功放推进音箱固然音箱有声音也不于烧坏单元，但就其低单元发全频声音不可思议；但假如从系统中不恰当位置获得信号也会给现场控制带来不用要的费事。
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.效果回路处置：应该取推子的后置信号，防止效果不受控惹起话筒啸叫，返回有条件占用一路通道,这样调试更便当。
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.线路衔接工艺：常见系统交流干扰声大就是线路衔接工艺没有做好形成的，还有系统中有均衡转不均衡及不均衡转均衡接法的一定要按规范衔接。另外不要用劣质接插件。
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.控制问题：调音台是系统的控制中心，有时调音台上的高中低贰蚕平衡做同等大幅度的提升或衰减则阐明系统并未调好，需求重新调试系统，不要过火调整调音台的贰蚕。
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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