Help with angles/degree

[eurovw89]

Here is my question.....how many degree pointing down does my rear speakers need to be? The reason I am asking, cuz this question is weighting on which speaker mounts to get...this is going to be the set up:

My seating height is 3.5' (C)
Distance from rear speakers 10' (A)
Rear speakers off floor 7' (B)

Image not available

Like I said, I am trying to figure out how many degree pointing down my speakers need to be.

Thanks,
jeff

[Kevin D]

If you wanted them pointed right at you, 20 degrees.

Kevin D.

[eurovw89]

Thanks Kevin