How should we judge the quality of the speaker system?

The main technical indicators and personal experience in assessing the quality of a speaker system: The quality of the overall technical indicators of a speaker system depends on the quality of each component. If the technical indicators of each component in the system are high, then the overall technical indicators of the system are very good. There are six main technical indicators: frequency response, signal-to-noise ratio, dynamic range, distortion, transient response, stereo separation, and stereo balance.

Frequency response: Frequency response refers to the frequency range of an audio system during playback, as well as the relationship between the fluctuation of the sound wave and the change in frequency. Generally, the frequency fluctuation at 1000 Hz is used as a reference for testing this indicator, and the frequency fluctuation is expressed logarithmically in decibels (dB). Theoretically, the overall frequency response of an audio system should be 20–20,000 Hz. In practice, this requirement is often impossible to meet due to reasons such as circuit structure and component quality.

However, it should generally reach at least 32–18,000 Hz. Frequency response refers to the range of the sound frequency band that the speaker can reproduce and is usually expressed in Hz–kHz. Because the upper limit of the frequency range that the human ear can hear is 20 Hz–20 kHz, and the human ear's hearing deteriorates with age to approximately 25 Hz–16 kHz, the frequency response range of a pair of excellent speakers must reach or exceed this range.