I also agree with Judit & Kweifi, I moved my 3A sig 4 feet from the rear walls and added 2wq's, It's heaven when you get it right! Tilt is the tough part, I had to order extra spacers to get the angle right with my listening height. But it's worth the trouble, I never think about my speakers any longer, I just listen to the music, never been happier with any purchase as I am with the Vandersteen 3A sig. Take your time and listen, when you get it right you'll be pleasantly rewarded, well you already know, that's why you bought them!
Good Luck.
Good Luck.