PS Audio Power Plant 15........


Just got a PS Audio Power Plant 15 that I bought as demo from a dealer. The idea was to upgrade from Audioquest Niagara 1200. 
As soon as I hooked it up to my system ( Auralic Altair G1, Pass Labs Int-60, Audio Note J-Spe Speakers) I was robed of my beautiful midrange and the soundstage that was open and 3D holographic became 2D and receded to the back of the front wall. 
Did several a/b tests and it became ever so clear.
What could be going on? Obviously, changing from a 1K unit to a 7K unit one expect an improvement.
Thoughts and comments are appreciated.
bbenzaquen6343
I think “huge” is an overstatement. I had a Pass Int250 with a dCS and in my opinion there were some subtle improvements - PS Audio gives you a more rounded sound and a blacker background but I can understand why in some systems the leaner sound  without a PP would be preferred / work better. 
To the OP,  If you haven't already tried this I would as a test only plug source components in to the PP.  Leave the amp out, then if no improvement plug it all into the wall (no conditioner at all).  Also, go back to the dealer and have them plug it into a system and notice the change if any.  Good luck.
If you think that it is going to sound great out of the box...it's not.  I leave mine on 24/7 and as I recall it took a good 10 days to settle in.  Initially I freaked out because it sounded worse than when connected to the wall socket...but now it's simply incredible.  If after the break in period it still sounds bad...then I would contact the dealer.