The 4 standards of determining the good or bad professional power amplifier.Audio for general use in

　　The following can pick out a speaker with a good performance (vocal song, musical instrument, dance music and dance music, and speakers), and use this speaker to PK power amplifier. Methods and measured the premise of the four standards that judge the quality of professional amplifiers as follows:

　　1. If the power of the amplifier is large, the sound of the speaker will be powerful, dynamic, clean and refreshing, and small power amplifier sounds will feel more virtual and the sound will be slightly smaller.

　　2. Use a unified sound source, unified recognized good speakers, uniformly uniformly switch to PK comparison of two amplifiers through the PK machine or PK line. Pay attention to the changes in the instantaneous sound, sound and music dynamics. The best power amplifier.

　　3. The power of power amplifiers is high, and the power of power is low. In addition, in addition to the sound of the power amplifier with a large power, in addition to the sound of the sound, it will also make the audio system more messy. Instead, the power is equivalent to the speaker or less than the speaker. Civil HIFI's biliary machine exception).

　　4. One of the important indicators of good amplifiers is clean, natural, and layered, and the hearing is soft, while the poor amplifier sounds are not clean and the sound is rough. In the case of relatively good sound source and speakers, discs (songs), the functions of amplifier functions are easier to identify.

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