What Kal said. Put the speakers ~4 feet in front of the windows (cover windows with heavy-ish drapes), ~3.5 feet from each side wall and sit where your head is ~14 feet from the window wall. That should give you a great starting point, especially if the speakers are front ported. If they are rear ported, it may not sound as good, but will certainly be better than having drivers facing the windows. From that point, move the speakers by small amounts to taste. It takes time, but the results are well worth it.
Not having a wall behind you is a great thing and helps immensely with bass loading problems as well as high frequency reflection.
If you try to rush through room setup, you'll only end up frustrated and disappointed. Take your time and remember that this is all for fun and enjoyment. Go slow and have fun! Hope that helps, a little.
Not having a wall behind you is a great thing and helps immensely with bass loading problems as well as high frequency reflection.
If you try to rush through room setup, you'll only end up frustrated and disappointed. Take your time and remember that this is all for fun and enjoyment. Go slow and have fun! Hope that helps, a little.