Thanks for answering. I will download the spreadsheet and give it a look. Edwardre, setup looks great but don't you need corners? One thing that I have noticed is that with my K-Horns about 20' apart my sweet spot is far closer to the front of the room (maybe 15') than j-malotky said I should be hearing. Actually it works out better that way because I like to sit quite close to the screen. Going to go make some quick measurments and see what speakers will fit under my screen. Thanks, back later.Ish