... structure, with vertical line and high power 3 way frequency system.With unique pectination wave-quide dual15" Ndfeb tweeter horn: ... horn,12"high power Ndfeb mid-low structure. Clear sound and permeationfeature, quick transmit speed , strong permeation, solid ... .5mmApplication: 1.suitable for large performance2.stadium3.large reinforcement sound field 12" three-way high performance Stage Line Array ...