The JBL EON712 12-inch loudspeaker and EON718S 18-inch subwoofer leverage the latest acoustic science, transducer designs, cabinet materials and advanced DSP and control technologies to deliver extraordinary performance in a fully professional, highly flexible, easy to use, portable system. Combined with the speaker poles, which allow you to easily position your EON712's above the subs, setting up your perfect system is a breeze. Buy them together in this special bundle and save!