in-wall location advice

tejinder
tejinder Posts: 1
edited January 2005 in Speakers
I am setting up a 5.1 system and new hdtv. we decided to go in-wall, so have bought the polk tc265i as the center speaker, and 4 tc65i speakers for front and rear locations. My question is location of the center speaker. We are mounting a flat panel tv above the fireplace so I have two options, both with some concerns so would love to hear some opinions:

Option 1:
the center speaker location above the flat panel, then the L and R speakers mounted in line with the center speaker. The issue is the height of the speaker (~80" from the floor). Given the seating area is about 14' from the TV wall (and the room has no backwall) I am worried that the sound is much too high above the seating position. I know I can angle the tweeter, but not the other speakers. Is this a bad idea? Should (can?) the mount be installed on a tilt to better aim the sound?

Option 2:
the center speaker between the TV and fireplace mantle shelf, with the L and R speakers mounted in-line with this level. The height issue of option one is resolved, with height being ~50" but the speaker would be right above a 8" shelf of the mantle so I wonder if that will adversely impact sound quality, or is the adverse effect lessened by the corner dampening technology?

opinions?

in case it matters here are the dimensions of the room:
- wall where TV is mounted: 12' wide by 8' high
- distance to seating area: ~14'
- no back wall (the room extends into the bkfst / kitchen area)

thanks in advance for suggestions