1.Audio Frequency.The range of frequencies which theoretically are audible to the human ear;i.e., 30 Hz - 20 KHz.Truly high fidelity audio covers the entire range.

• 音频，理论上是人耳能够听得见的频率范围，即：30Hz-20KHz，是覆盖整个频率范围的真正的高保真音频。