Without a picture or drawing, your description is still vague.
You haven't told us the width of the wall...only height and depth of the room. There's no description of the room materials so that we might suggest a speaker design that might fit the space.
My advice: take a straight-on picture of your room with something in the scene to approximate scale. Then in Photoshop or another graphics program, add various speaker images to the scene that look the best to you. Preferably speakers that play well with your electronics and room dynamics.
Otherwise it really doesn't matter what you pick...