Okay, if any of you have been following my posts lately you can gather I am not a veteran in the world of HT. I NEED ADVICE!! I am hours away from purchasing 4 JBL E20s (front and rear) , EC35, and E250 sub. NOW I see some posts mentioning certain positioning problems for the E20s. I have NO CLUE what rear ported means or how this will effect my set up. Help me out. I want 4 of the same so the crossover will be seemless. I like the size of the 20s and dont want to scale down to the E10s. All help is appreciated!!