1.active mini line array,loudspeaker,pro sound,pa system 2 ... . Input signal is amplified by the built-in pre-amplifier, then processed and distributed by DSP. Finally, output ... of which forms an integrated system.Model: RS-400 active mini line array, loudspeaker, pro sound, pa system ComponentLF: ... )Net Weight65Kg/setGross Weight74/kg/set 4inch active mini line array,pro loudspeaker,PA system (RS-400)