Vandersteen Moel 2Ce better than Model 1B used in midsize room

Not to be contrarian but I would say the grass is not always greener. I had the 1ci's and quickly upgraded to the 2ce Sig II's. I have a similar shape room to yours and found the 2ce to be just too big, especially in the low end.

I recently had an opportunity to pick up another pair of 1ci's for a steal. For the most part I'm pretty pleased with them. But I completely agree with you, when the music gets more dense the Vandy's tend to sound muddled and congested. Just something to think about. Currently running them with a Belles Aria or a Rogue Cronus Magnum III. 

As far as sound 'getting  muddled'.
I would look upstream. Your NAD is a decent amp.
What is your preamp and source and cables?
Audionoobie's Belles Aria is a great combo with Vandy's. I run a pair of Aria monoblocks with my VLR's. They really put my old McCormack Micro amps to shame. 
Also, preamp and cabling will make a significant difference in what you are hearing.
Please, don't think I want you to buy more equipment, but my opinion is that if you aren't hearing complex passages, then there must be something wrong upstream, because I know the Vandy 1's can perform as well as the 2's with regard to complex music. The only other factor would be if the speakers are in need of repair.

Bob

1, 2, 3, Treo, 5, 7 owner...

looking at your attic photo...cool room - some challenges and opportunities... love it by the way...

your NAD has enough grunt for either, obviously you could change it to some benefit. with your space, i would high pass the 1’s and add a Vandersteen sub. IF you put the 2’s where the 1’s are currently you will get the benefit of the midrange for sure BUT the acoustic coupler is too far out from the wall to have much effect....hence my recommendation.

have fun, enjoy the music !!!!!

I bought a pair of Vandy 2ci with sound anchor stands.How far do you tilt the speakers.Mine are playing vertical now.

@nypd26 

I bought a pair of Vandy 2ci with sound anchor stands.How far do you tilt the speakers.Mine are playing vertical now.

Follow the manual instructions to the ‘T’. If you don’t have the original, download a copy off the Vandersteen web site.