1. Line array speaker 2.Component: double 12"LF& two 1.75" ... theater pa system, portable or A/V install. Line array speaker (MC-12)1. The MC-12 is a kind ... of full range line array speaker, it includes two 12" neodymium high effective conversion ... 12 and MQC-55B for a match,form a line array system, it can adjust many angles, so that all ... MC-12 12" 2-way full range Line array speaker