I was thinking more like a 3.1 actually, a center/front consisting of 2 woofer and 2 tweeters, then left and right which would be 1 woofer and 1 tweeter each, then the substage. I would like some advice as to what you think would be better off, this will be in a room approximately 12ftx20ft. Let me reword what I meant by flexible, I was thinking along the lines of having extra power and available options to possibly reconfigure my setup at a different time.