So we're about to purchase a pair of speakers for my church and i am pretty confused about which is better. We're planning on getting a pair of JBL PRX735 15" 3-way speakers or a JBL PRX725 15" 2- speakers together with a pair of JBL PRX718XLF 18" subwoofers. I sort of know the difference between the 3-way and the 2-way but i do not know which is better for the application. We're using these speakers for an outdoor/mid-size hall event. This pretty much gonna be our multi-purpose speakers soon.