近期,采用双共振峰式的音箱系统成为音响界的一个热门话题。该音箱主要特点是能够扩展音箱的频带,使低音域更能向下延伸。在共振状态下,扬声器振膜的输出并不是直接向自由空间辐射。当音箱内发生空气共振,该空气共振就会从倒相孔输出。这种音箱的失真小于驱动单元露在外面的普通低音反射式音箱。这是因为共振本身的频率可以自由选择,倒相孔的输出与经过带通滤波器的输出相同。虽然共振输出音箱也和普通的低音反射式音箱相似,由于它采用双共振峰的方式,所以频带要宽得多。另外,由于在共振范围内振膜的振幅 Recently, the use of dual-resonance peak speaker system has become a hot topic in the audio industry. The main feature of this speaker is the ability to extend the speaker’s frequency band to extend the bass range more down. In the resonant state, the speaker diaphragm output is not directly to the free space radiation. When there is air resonance in the cabinet, the air resonance is output from the inverting hole. The speaker’s distortion is less than the normal bass reflex speakers with the drive unit exposed. This is because the frequency of the resonance itself is freely selectable, and the output of the inverting hole is the same as the output of the bandpass filter. Although the resonant output speaker is also similar to a normal bass reflex speaker, the frequency band is much wider due to its dual formant approach. In addition, due to the amplitude of the diaphragm in the resonance range