18inch PA speaker                                   
Glass fiber and paper cone with cloth surround                    
Black high gloss colour Die cast basket with paper gasket   
2-Layer CONEX material  spider  
Black zinc plated top and bottom plate 
4-layer 99.8mm  BACCW  voice coil  
220mm 120 Oz magnet    
Nominal impedance:8ohms DC Resistance:7.2ohms
F0:35Hz 
Rated music power:2500w
SPL:99.5db  Qms:5.9 Qes:0.35 Qts:0.33