Hi I am about to lay some speaker cable in a room for a 5.1 layout, my question is about positioning the speakers. I have read that the speaks should be mounted at around head level when seated, but what effect will it have if i mount the speaker up high on the wall and point them down ? what about the center speaker, I am putting in a project and screen so don't have a tv to mount it on/under will I get a good sound if i mount it on the ceiling and point it down ? I don't want the speakers to low as the room will also be used by the kids to play in. by the way I have Mordaunt-Short Premiere speakers thanks for any help/advise John.