Hello Wayne
Thanks for the reply.
For the sake enlightenment- What would be the expected outcome if I place the 901's in the opposite direction with a DE250 horn on top?
I lose the most of the reflections I guess? But gain in a better sound stage.
Secondly, I keep the 901's in the recommended position and place the DE250 or any other tweeter facing rear words in the reflecting position. Of course I will need two tweeters per side to match the design/reflections of the 901's. Overkill?
Have I answered my own questions?