·Compact appearance without losing domineering, calm effect without losing domineering. ·Is the best choice to lead the trend and release passion. ·Strong, durable, moisture-proof black box; coupled with a direct high-performance, ultra-high-power 18-inch imported bass unit, releasing a thick, powerful, almost zero distortion bass, very suitable for ultra-low frequency playback of PA sound reinforcement system. It is suitable for outdoor performances, gymnasiums, nightclubs, bars, auditoriums, cinemas and other large and medium-sized venues to expand the main or auxiliary low-frequency use.