RS221 high-performance ultra-low speakers, used with RL1, RL0.5, RX212, RX210 speakers, suitable for all kinds of event centers, theaters, halls, DISCO PUB, music clubs, performance halls, music bars, high-end KTV, night clubs and other places use. It can be stacked on the ground or hoisted in any direction. It can be hoisted separately or in the line array of two cabinets. The cabinet adopts the bass reflex design, which can accommodate a single long-stroke 21-inch driver. Various designs make the maximum sound pressure reach 143.3 dB. RS221 has excellent performance in the supplementary sound and extended frequency band, which can effectively improve the sound dynamics and impact, and reach the performance of extraordinary level; its omnidirectional dispersion design allows it to manufacture various symmetric and asymmetric directional work Mode, perfectly matching the sound field design of various event scenes.