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
@audioconnection 
Yes, I forgot that you need an amp in connection.
@ja_zz 
You did refer to NAD as:
 I don't believe in NAD being high-end equipment
Bob
I would try to avoid the Quatros woods with lower midrange suckout. It is disctracting. I believe it is the first version. There is a later, non-CT iteration that did not have that problem. The quatros mostly solve the bass issue of the treos.
Bob,
True, bit "lowly"?? A much stringere Word IMO.

Ohlala,
Thanks, nitty how do you distinguish them?
Sorry, Italian keyboard kicking in on my smartphone... stringere=stronger
Nitty=but