The RX series is one of the most outstanding PHD professional loudspeakers series, mainly use in the theatre, auditoria, muti function room, gymnasium, high-class entertainment,discotheque. The cabinet is consists of the high-density birch wood. It has the flying points on the top and the support pole on its bottom. RX series is the concentric design, the definition and equation of sound is good, the mid/high frequency is vigorous, can reflect the tone very accurately.