i have thought anout running just one but i already have them both and they are dual 4 ohm so i will only be running one at 2 ohm so i wont be getting as much power from my amp but im starting to think that one will be alot easier to make work than two im not wanting to cut anything out as far as the rear deck goes and i have a set of memphis 6x9s int he rear deck do you think the pressure would hurt them i have heard of that but i didnt know if that would be alot mroe extreme situation than mine or not