L-3215 large power line array speaker system with neodymiun built in. it has the advantages of small volume,light weight,high sensitivity and good in overall sound. mid-hi fre-quency is sweeter.LF is rich and powerful. unique trapezoidal box body structure design. effectively reduce the body harmful standing wave. characteristics of waveguide transmission glass steel horn, the soprano is extremely excellent pointing broad spherical wave radiation,to create the perfect flat frequency response.convenient box hoisting.