I have a dedicated HT room in the basement with the following dimensions: (WxDxH) 4.38m x 5.48m x 2.35m

And I want to use 7pi´s as front, and make a center speaker with the same tweeter horn, and pi midhorn and a bassbox with the same woofer.

1) Would it be best to set up the front speakers on the short or the long wall ?

2)Would the 7pi´s overpower my room if I used them as rear speakers too?

3) Are the 7pi´s too forward sounding for rear speakers, would I be better off with a direct radiator speaker for this?

Placing the front speakers on the short wall will make the listening position in the middle of the room, and the rear speakers placed behind the listing position.
While placing them on the long wall, the couch would have to be up against the backwall and the rear´s too. Dont know how much this matters though.

Regards
Kim