Shahinian Obelisk vs VandersteenTreo


HI fellow ’goners.
I own the Shahinians, thinking of upgrading to the Treos. The Obelisks sound a little smallish for the room... And the room is not square, it's a big living area of a house, with access to the second floor's roof. 
Will this be an upgrade or just a sideward move?
Room approx 60m2, driven by Musical Fidelity A5.5, 250wpc at 8Ohm (thinking of replacing this one too).
Mostly jazz and acoustic music, less frequently - classical and pop.
Thanks!

ja_zz
All done, will try to screw them in tomorrow.
Can’t attach pics here. How’s it done?
Huh? 
What, the speakers have no internal threads?
Maybe you can start a Virtual System page.
We'll sort this out...
Bob
They do, but they are not metal: just the wooden stuff the speakers are made of. Not used to this.  Ruined q of an inch of thread. 
Guess they need to go deeper..