Several tens of rooms all adopt DMX products, and the perfect combination of the D-12II and the 

D-18B has won good reputation from the owner and customers. The sense of music levels is quite strong, and the treble is clear and bright; meanwhile, it is delicate and has sufficient penetration. The bass is clear and thick, and it has good transient response, so it sounds clean but not messy. The human voice is mellow and full, and it is easy to sing.