Line Array, Subwoofer, Digital Amplifier manufacturer / supplier in China, offering Ka18 Sound Equipment Professional Sound Passive 18 Inch Neodymium Magnets Speakers Subwoofer, V488 Professional Sound Speaker Line Array 3 Way Dual 12 Inches Passive Neodymium Driver, Ka15 Line Array 2-Way Neodymium Driver 15 Inches Passive Professional Sound Equipment Speaker and so on.