Line Array, Subwoofer, Digital Amplifier manufacturer / supplier in China, offering High Power Amplifier Ds-20q 4400W Audio Amplifier DJ Subwoofer PA Speaker 18 Inch Line Array System Amplifier, K4-1000 4 Channel 1u Digital Amplifier Professional Class D Power Amplifier Audio 1000 Watts, Yt-08 Rofessional 3-Way Neodymium Driver Dual 8 Inch Line Array Speaker and so on.