How to choose professional audio

For many professional audio players, the purchase of professional audio has their own understanding, professional audio has a variety of different types, but generally divided into two, one is active audio, the other is passive audio. Active audio means that power amplifiers, speakers, etc. are pre-equipped by the manufacturer, directly installed on the wall or behind the power amplifier, this active speaker has more advantages in sound pressure than passive speakers. Passive speakers are much more complex, not only have power amplifiers, speakers, mixing stations and other equipment, but also according to the site environment, the use of functions and decoration style to choose.

appearance
Now many users in the purchase of professional audio, like to pursue the appearance of the beautiful, and even some users will be the appearance of the audio as an important reference indicator, in fact, this is not correct. The appearance is only one part of a product, if the professional audio as a piece of art, then it reflects the value of the process is also quite high.
The appearance of professional audio is beautiful mainly depends on the two aspects of the speaker unit and the box production process. If it is made by traditional hand, then its workmanship will inevitably be lacking, so professional audio must be perfected in appearance. At the same time, it is also necessary to consider the materials used inside the box and the process used by the speaker box, so as to ensure the sound quality to the maximum extent and improve the user experience.
power
Power is a very important parameter in professional audio, because it determines how much sound pressure our entire sound system can support, which determines the use of our entire sound system and the amount of power reserve.
In general, the more power, the better the sound system. When purchasing, we must first determine how much power the speaker needs according to our actual situation. At the same time, it depends on the environment of the site.
Under normal circumstances, we should try to choose a speaker with relatively large power, because high-power speakers are better than low-power speakers in sound restoration. However, if the scene environment is noisy, you can also consider choosing a low-power speaker as a supplement.
Frequency response
Frequency response refers to the response of the speaker to the sound in a certain frequency band, which is also called the "cutoff frequency", for example, for a sound with a frequency of 20 Hz, its cutoff frequency is 20 Hz. The better the audio device responds to the sound in this frequency band, the more clearly the details of the sound in that frequency band can be heard. A speaker with a good response to high and low frequencies can well restore the details of the sound in this frequency band. Because different materials have different frequency responses, when choosing a speaker, you should first understand whether the frequency response of the speaker meets your requirements. Of course, not all good frequency response speakers can restore the sound of the frequency band, because some good frequency response speakers in this frequency band can not restore it, and in actual work, often these speakers will have some sound dyeing.
Speaker box
Sound box is an important part of the sound system, and it is also one of the core components of the sound system.
A set of high-quality speakers should have the following characteristics:
1. Good directivity. The better the directivity of the speaker, the more realistic the reproduction of sound. Speaker directivity is not good, the sound will be distorted, unnatural.
2, good sense of energy and fullness.
A set of high-quality speakers, its energy sense and fullness should be better, otherwise there will be distortion and unnatural in large dynamics.
3, good tone reduction. A good speaker can restore the sound to the real and natural. High-quality speakers can make the sound very realistic, so as to create the ideal auditory effect.
4, good dynamic range, which is the most important requirement for high-quality speakers, but also one of the main standards to measure the quality of a set of speakers.