Line Array, PRO Audio, Sound System manufacturer / supplier in China, offering Domc Professional 2X10" Bi-AMP Passive Speaker 55Hz-20kHz 136dB Peak Spl for Stage, Domc E4.10: 4-Channel Pure Power Amplifier for Professional Audio Applications, Domc Sound Xr210 Bi-AMP Loudspeaker System - Superior Sound Outdoor Passive 2 Channel Line Array for Stage System Church Conference Wedding PA Speaker and so on.