Near-field speaker placement

I have a small room (13.6 by 9 by 7 feet high) with carpeting on the floor and acoustic tiles on the ceiling. In a near-field setup, where should the speakers be placed in this room? I've read a number of different takes on placement, including these two that seem to contradict one another:

http://www.cardas.com/room_setup_near_field.phphttp://arqen.com/acoustics-101/room-setup-speaker-placement/#equilateral-triangle
I have a very modest system (NHT Classic Twos, NAD amp and preamp, Cary disc player and a small Velodyne sub). NHT recommends that the Classic Twos be placed at a 1.5 ratio (60 inches between the speakers would mean 90 inches from the listener). How big of a problem is this if the typical near-field setup is an equilateral triangle? And in a room like this, how far should the speakers be placed apart?

I wasted years on trying to make a square room work, and if this doesn't pan out, I'm thinking I might just go the headphone route. Thanks for the time and advice if you can provide it.