Line Array, Subwoofer, Digital Amplifier manufacturer / supplier in China, offering Professional Audio 4CH Karaoke Power Amplifier Ds-10q Class Td Power Amplifier Module, Professional 4 Channel Power Concert Amplifier Sales Ds-10q with Amplifier 2000W, Sinbosen Professional Audio Amplifier Ds-10q 4 Channel 2000 Watt Power Amplifier and so on.