is it a good  subwoofer, whats the air space for that woofer, for a vented box,online dont tell you the air space it need.
      
                        
                      
                             
      
            
            
        It's an SPL sub, It sounds alright for everyday listening but its beats ungodly loud. Im not 100% sure on the airspace requirements but i know you need a shit load of room and a butt load of power.
      
                        
                      
                             
      
      
            
            
        2.5 cubes straight from the memphis website 
      
                        
                      
                             
      
            
            
        well I have one of these in my truck and I'll tell you its a monster...