A coaxial 8 inch loudspeaker unit is built in the CV-8 speaker, which not only provides sufficient energy for the middle and high frequency range, but also improves the sound brightness and clarity of the sound. At the same time, coaxial loudspeaker box has a high phase fidelity, accurate sound field positioning ability, coaxial unit performance sound field is broad, is the theater reduction in the sound field of the weapon. TD-12 is a multi-purpose two speakers, top speaker unit custom as the core components using abroad, combined crossover network speaker unit and carefully tuned, give full play to the comprehensive advantages of 12 inch units, not only high pressure, smooth frequency response, to solve the traditional problem of lower professional speaker bass, bass and soft elastic, surrounded by sense, can easily create passion, emotion, atmosphere rich activities, to enjoy the spirit of quality. It can also be used as stage return speaker.