Dongguan event planning company as we provide an important function consoles and operating skills 1, the signal input mixer: Mixer input signal is divided into roughly two low-impedance microphone input signal and a high-impedance line input signal. Each input can think of it as a water pipe, that is, if a multiple-channel signal input mixer is like how the water pipes to the mixer strip in the same processing. I had low resistance and high resistance can be distinguished as different water pressure or flow rate. For example: a high-impedance input level is high, just like the great water pressure, flow more acute, direct input to the mixer on the right of the sink, not in the middle of what links to adjust the water pressure and water flow rate; but low-impedance input level is low, just like the water pressure is low, the water flow is very slow, direct input to the mixer would be inappropriate in the pool, I have need to add in a flood pond pump, the low resistivity low increased pressure to it, and let the water faster, so low impedance mixer input channels are built in a dedicated circuit amplifier to amplify the low level to the appropriate level. Such water features to describe the low-impedance signal and high impedance signal we should be on a good understanding. 2, the mixer channel gain adjustment: To enter into the mixer where the sound source, the author who first have to decide which is the low resistance or high impedance, then the proper connection to the console using a standard signal lines. If you want every way audio are perfect sound quality, I have need to carefully adjust. Gain for each input channel mixer is important very critical, but it seems a lot of the sound engineer just gain a simple look into a volume knob only, so wrong. In fact, the gain is mainly used to control the input signal dynamic range, typically gain to the maximum distortion is the greatest effective dynamic range, and also the status of the best results. So it is somewhat difficult to understand, or water describe it: the mixer input channels and the input line will have a basic background noise, the noise floor is like a river in the sand, is not eliminated. You know, when the river is not deep, when the flow of water is all under sediment, so that water quality was not good enough. That is less so if the gain adjustment of dynamic range audio signal is like all water under the sand, and the background noise will come to the fore, when the sound quality was not good enough; the opposite when relatively deep water when Water flow is relatively clear, the water quality must be very good, large dynamic range means that the gain adjustment, more reasonable, so the sound quality is certainly very good; of course, if the waters prevailed, even causing it to collapse the dam, the river gave overturned, which is equivalent to the level of signal distortion is large, and this time is also not much sound, and will damage the device, so the gain is not the bigger the better, have a degree, the right to do. I want to describe the role of the gain, even beginners should be able to understand the sound of it. 3. Adjust the mixer channel balancing group: When the gain after a good tune, usually the next step is to adjust the balancing group mixer channel, the sequence should start to adjust the bass part from the transfer, and then adjust the treble section. Because only guarantee the basic tone of the sound, in order to ensure good sound multiple overtones. The basic problem we did not adjust, and here I just say what a few techniques. 

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