1.Driver:two 12'' LF and one 3'' HF, plywood. 2. Line array system full for medium ... system line array sound system used line array1.Q-12 is a 2-way full-range line array ... loudspeakers system. 2.Use two 12" high-performance LF unit, inside the 75 ° x30 ° ... level constant point horn, loaded a 3" HF compression drive unit, 3.Unique integrated design, combination of multi ...