
First, listen to music. That is to first play the music you are familiar with, and experience the upgraded sound quality of the audio system by listening to the music you are familiar with. If you can feel clear, powerful, three-dimensional, and authentic sound quality in familiar music melodies, the music atmosphere is strong, and it can bring you to the scene of music, then the upgraded sound system is generally good.
Then adjust the volume. During the process of listening to music, gradually adjust the volume, and then carefully listen and feel the changes in sound quality. If as the volume increases, the sound becomes loud, loud, and annoying, resulting in severe distortion of the sound, then the upgraded audio system may not achieve the desired level. At this point, it is necessary to recheck the matching, debugging, and even replace the equipment.
Another step is to switch between different music types for trial listening. Try playing different types of music for a trial comparison, such as switching between pop, classical, rock, etc., and carefully experience the performance of the entire system under different music types. Different types of music have different requirements for the performance of sound systems. Some sound systems interpret popular music very well, but their interpretation of classical music is poor. So, switching between different music types can also determine the quality of the upgraded audio system.
Finally, conduct a trial listening of different audio systems. Under the premise of the same song, compare the upgraded audio system of your beloved car with the upgraded audio systems of other cars, and then feel the differences in sound quality. This can also objectively evaluate the quality of the sound interpreted by the audio system.




