For starters, I have a 55 inch LED in a large entertainment center with glass cabinets on each side. I have the Energy Take Classic 5.0 and added the Energy SW10.3, and I use a Denon AVR-1612. I sit 12 feet away from the TV, but my wife and I always sit on the chaise which is off to the left, NOT directly in front of the center channel speaker. The left side of the room (the side we sit on) is wide open directly to the kitchen.
Recommendation 1: Optimize the sound for the center of the room.
Problem: Like I said, we don't sit in the center of the room, we are about 4 feet to the left. Will optimizing for the center cause the sound off to the left to be less than optimal? Or will it not be noticeable?
Recommendation 2: Left and Right front speakers should be placed at ear level and between 22 and 30 degrees from the viewing point, also 12 feet from viewing point.
Problem: 22 degrees at ear height would put my speakers at the very ends of my entertainment system and inside the glass cabinet, so I obviously cant do that. There is no unobstructed shelf at ear level, though if it's on the same stand as the TV, it could be within 12 inches. Unfortunately, putting them here gives only 11 degrees off the center. One other option is about 16 degrees, but they would be up high, about 6 feet, way above ear level when seated, and they would be in a position where they could not be angled. The last option is at the end and top of the entertainment center (which is actually still about 20 degrees, getting closer!), which could then be angled downward using a wedge of some kind. The problem here is the wife doesn't like how it looks. Hey, I gotta make some compromises. So my question here is, how important are these angles? How much of a problem would it be to place them at 11 or 16 degrees? How important is having them at ear level if I can angle them downward?
Recommendation 3: Center channel should be at ear level, above or below the TV. Left and Right fronts should be close in height (within 24").
Problem: Ear level is at the TV. Below the TV will be only about 15" high. Above the TV will be about 5 feet. Aesthetically, below would be the best, but that forces me to place the speakers at the 11 degree mark and really only about 60" between the left and right speakers. Above doesn't look as nice and is farther off from ear level, but I could angle it downward and the left and right speakers would be at the slightly better angles.
Here is a diagram. The center of the couch is the viewing point here. The angles on top are the 3 possible placements of the L/R. Surrounds are expected to be 110 degrees to the back. You can see the sub off to the right of the entertainment center.
Thanks in advance.