Fully Weatherized Fiberglass Finish with Gland Nut and Stainless Steel Grille,ND2B 2" (51mm) Diaphragm, 1.4" (36mm) Exit Pure Titanium Compression Driver,SMX2121 12" (305mm) LF Transducer with Fully Symmetric Drive,Advanced 4th Order Crossover Network with HF Protection,Coverage Pattern: 60�� x 40�� Constant Directivity��� 12" Rotatable Waveguide,98 dB Sensitivity, 131 dB Maximum SPL,System Rating: 500W Continuous, (2000W Peak),Active Rating: LF400W/HF40W Continuous (1600W/160W Peak),(22) M10 Threaded Suspension Points