1) If the tweeters are at ear level, you're good to go.Ok that's a good start, I have the two front speakers mounted on the wall. I do believe they came with extensions to make them longer, I too thought they was low but that's ear height when we are seated. Unfortunately the wall mounts I bought do not swivel so I can't toe them in. As for advice I'm looking for,
1) speaker height/heights
2) should I close off the dining room from the living room when watching movies?
3)larger front channels speakers
4)should I make make the living room as dark as I can to watch movies or should I use some ambient lighting?
I use black-out curtains between my LR and entryway/kitchen for just that reason (light blocking), I just wanted you to know that it won't effect the sound.Ok so the curtains won't block off the opening (subwoofer improvement) but I think it will help to make the room a bit darker. And cut down reflection from the white paint on the pillars, and if it does not serve any good purpose I could alway return them lol