The imported Nd magnetic elements are used in the linear array units, which are precisely calibrated by computer. The phase and frequency response curves are very smooth. In addition, FZL series speakers are made of imported IPC birch boards. The speakers are all made of expressive water-borne black paint. Their appearance is smooth. The speakers adopt new technology and have first-class sound quality. Because of high sound pressure protection, they can ensure that the original sound is not distorted in high-power state and make it high. The sound is clear and crisp, making the intermediate frequency transparent and bass full and full.