According to the playback rate, it can be divided into full band speakers, bass speakers, and subwoofers.

The ultra-low frequency speaker is a high-performance, high-power bass unit with a 100 core voice coil of 12 inches, designed to descend to 35Hz. The box structure adopts a direct beam design, which makes its low-frequency and efficient performance deep and powerful, plump..

We know that the characteristics of low-frequency sound waves are high sound pressure and long wavelength. Therefore, compared to medium to high frequency sound waves with prominent propagation directionality, the propagation of low-frequency sound waves has little obvious..