The power amplifier is referred to as power amplifier, commonly known as "amplifier". It is the basic equipment in the sound system. Its task is to amplify the weak electrical signal from the signal source (in professional sound systems, it is from the mixer) to drive the speaker to produce sound. Power amplifier is so important in the whole audio system, how to judge the quality of professional power amplifier?

Next, you can select the speakers with good performance (vocal music, instrumental music, dance music and the voice of the speaker), and then use this speaker to PK the power amplifier. The method and measurement of the pros and cons are introduced by the engineers of the Jazz Dragon manufacturer to you. The four criteria and prerequisites for determining the quality of professional power amplifiers are as follows:

1. If the power of the power amplifier is large, the sound of the speaker will be strong, dynamic, clean and crisp, while the sound of the low-power amplifier will feel virtual, and the sound will be slightly smaller.

2. Use a unified sound source, a unified only recognized sound box, and a unified song to PK and compare the two power amplifiers through instant switching of PK machine or PK line. Pay attention to the changes of sound quality, timbre, and music dynamics at the moment of switching, and ultimately select the power amplifier with the best performance at the beginning.

3. A power amplifier with a large power cost more, while a power amplifier with a small power cost less. In addition, using a power amplifier with enough power to push the speaker will not only make the sound sound pleasant, but also make the sound system less chaotic. On the contrary, when the power is equal to or smaller than the speaker, the sound will be distorted and unpleasant, and the speaker will be burned more easily (except for the civil HiFi courage).

4. One of the important indicators of a good power amplifier is that the sound quality is clean, natural, well arranged and soft, while the sound quality of a poor power amplifier is not clean and rough. In the case of relatively good sound source, sound box and disc (music), the function of power amplifier can be easily identified by PK.