15" Two-Way Portable Stage System Includes a 15" Woofer;  a 1" Titanium Diaphragm, Fluid -Cooled Compression Driver Mounted on a Progressive Transistion™  Waveguide;  Sonicguard™ High Frequency Protection;  Carpet Covered , Trapezoidal Enclosure; 3/4" MDF Construction;  18 Gauge Steel Grille; 35 mm Dual-Angle Pole Mount Socket; Steel Handles; Neutrik®  SpeakOn® and 1/4" Input.