Hello Romanos, and all !
I have recently experimented Successfully,
with lining up my Eight Behringer B2031A's on their backs,
Four on each side of my Console,
Tilting them a bit toward the wall behind them In order to disperse their sound from floor to ceiling !
It definitely works well,
with no noticeable loss of highs, that facing them all toward the wall caused.
I have purchased 8 steel grilles, to protect the drivers from things falling on them.
Best wishes to all,
I'll try anything, I reasonably can, to improve Realism ! Mel