KG 2.2's are not magnetically shielded for use near video equipment.
I currently have KG 4.2 mains, KG 3.2 rear surrounds, KG 2.2 side surrounds, and Kv3 center. My sub is the SW-12, though I am currently looking to upgrade to the RW-12 for LFE input. My receiver is the Harman Kardon AVR525.
The best thing I could do for use with hardwood was to elevate the 4.2's. I use 9 inch stands with carpet spikes. The rubber feet on the 4.2's paired with the hardwood made for exceptionally boomy response. I have a pair of 1' x 1' x 3/4" marble slabs that protect the floors from the carpet spikes.
Vocal quality was enhanced further by placing the center channel on a home-made stand on top of the entertainment center. I cut a 9 inch stand down to 3 inches, and I am using a set of brass buttons to protect the wood from the carpet spikes. The buttons have a slight indentation in the center that assures the stand doesn't slide onto the wood.
My surrounds are all hung from ceiling joists, and the sub sits on it's own marble slab.
You are on the right track. Keep up the good work.