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
+1 for mr_m.
OP, I thought you said you were in Russia? Where does the Italian keyboard come in?
B
Bob, Tomic,
It’s definitely a plot: you have surely seen that picture on the internet where a lady is writing to customer support asking whether her password is safe from Russian hackers. Customer Support’s answer: Da.
That must have been me ,😂
Yes, indeed, I am a Russian. A Russian, also speaks English, French, and Italian. Hence the Italian keyboard.😁
Finally received my newly bought second-hand musical fidelity A5.5 and hooked it up to the shahinians instead of my beloved, but child-unfriendly Manley Stingray.. So far the only good thing about it is that it doesn’t have any attractive switches or protruding glowing valves...
I guess, I must be doing something wrong. I did, however, phase the plugs and add a good DAC to feed it.
Underwhelmed...