source:Industry News release time:2021-09-13 Hits: Popular:Brand bar audio wholesale
Power amplifier is abbreviated as professional power amplifier, commonly known as "amplifier". It is the most basic equipment in the audio system. Its task is to amplify the weak electrical signal from the signal source (in the professional audio system, it is from the mixer) to drive the speaker. sound. The power amplifier is so important in the entire audio system, so how to judge the quality of professional power amplifier?

We can pick the speaker with the best overall performance (vocal tunes, instrument tunes, dance music tunes and microphone vocals), and use this speaker to PK professional power amplifiers. The methods and conditions for measuring pros and cons are roughly as follows:
1. Use the same sound source, the same recognized best speaker, and the same song. Use the PK machine or PK line to switch between the two power amplifiers. Pay attention to the changes in the sound quality, tone and music dynamics at the moment of switching, and finally select The best power amplifier on site.
2. If the power of the professional power amplifier is large, the sound of the speaker will be strong and dynamic, full of dynamics, and the rhythm will be clean and tidy, while the sound of the low-power power amplifier will feel weaker and the sound will be slightly lower.
3, the cost of professional power amplifier is high if the power is large, and the cost is low if the power is small. In addition, using a power amplifier with sufficient power to push the speaker will not only sound good, but also make the audio system more stable. On the contrary, when the power is equal to or smaller than the speaker, the sound is easy to be distorted and unpleasant, and the speaker is more likely to burn out.
4. One of the most important indicators of a good power amplifier is that the sound quality is clean and natural, with distinct layers and a soft sense of hearing, while a poor power amplifier has unclean sound quality and rough sound. When the sound source, speakers, and discs (songs) are relatively good, the pros and cons of professional power amplifiers are easier to identify with PK.
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