vair68robert-I've been aware of and read the Cardas method years ago. Finally decided to give it a try. Glad I did. I have a better appreciation for my speakers.
The speakers are sealed cabinets, so I don't know what that adds to the equation.
There probably is a little more to be squeezed out, with minor adjustment, but I'm satisfied for now. I haven't gone the last mile with subtle tweaking yet.
twoch- pleasantly surprised there's no shortage of low end with the speakers based on the calculator. Speakers are 6' apart(ctr-ctr) and i'm just outside "the triangle" Low end is amazingly strong without turning the subs on. With the subs on, its like "icing in the cake."
http://www.cardas.com/room_setup_calculators.php