Before buying any equipment, it's probably best to decide on a permanent room configuration before poking holes in spots you'll later regret.

Directional speakers like the R3 are not as ideal as surround speakers that radiant across 180º and provide a non-localizable ambience. Mine are sitting on the floor rather than above ear level, and it works fine for my situation without having to mount or even look at them.

Author of "Status 101: How To Keep Up In A World That Keeps Score While Buying Into Buying Less"