With this RE deal goin, i am thinkin about switchin up. I have an expedition, so the space isnt much of an issue although i would like to save it if possible. I just think that I would like a tighter bass more than the rumble of the 15. Would these 4 10 RE's be able to put out similiar if not better output than the 15" HC, and could these be run efficiently off of my jbl 1200.1?