
A good 5.1 speaker must be crystal clear, even at the maximum volume, it cannot be too saturated. The sound of the intermedia

The harmonic component that constitutes the sound is very complicated, and the wider sound is not as wide as the frequency ra

Theoretically, the frequency of 20-20000Hz is sufficient. The sound below 20Hz can not hear the other sensual organs of peopl

In actual use, the frequency range and frequency response of the audio has always been a matter of attention. However, becaus