The Cardas method puts your speakers very close together. Try the Vandersteen method, which in your room would put the speakers 2.9 feet from the side walls (1/5th of 14.5, measured to the center of the woofers) and 7.3, 4.4, or 3.14 feet from the back wall (1/3, 1/5, and 1/7th of 22). This would have your speakers 8.7 feet apart--pretty workable--with whichever distance from the back wall gives the most even bass response. Then stick your listening position 1/3, 1/5, or 1/7 into the room, whichever brings you closest to an equilateral triangle between you and the speakers.
Measure your room accurately in inches and divide by odd integers if you want to be really accurate. From your system pics it looks like you have a lot of flexibility with placement, so one of these combos should work. Good luck.
Measure your room accurately in inches and divide by odd integers if you want to be really accurate. From your system pics it looks like you have a lot of flexibility with placement, so one of these combos should work. Good luck.