[Otto]

Welcome, dutch,

I moved your thread to the "General Discussion" area.

I think your room is going to be bigger than 408 cu. ft. 10x16 = 160; 160x10 = 1600. And your room is actually bigger than that!

I think you should only use one center channel. Two can lead to comb filtering, which won't sound well. If you find you're lacking in output or sound quality, step up to the next model, or change speakers. Yours isn't a small room, but it's not big, either. I think you should be able to have a fine theater in there!

If it doesn't matter which alignment you use, I'd try both and see which one works better for you with regards to audio and video.

Good luck and welcome.