Upgrade to Maggi 3.7i or Tekton Moab?


I’ve got a dilemma. The audiophile bug to continuously tweak and upgrade has got me wanting more and bigger sound out of my system. I’m currently running Maggi 1.7is with a single SVS SB2000pro, driven by Parasound A21+. What I’m finding is in my large room (20x18 with vaulted 18ft ceiling, leading into open kitchen) it just does not deliver the uumph that I am wanting when I want to "feel" the music hit me. I am debating what my next step should be when I am ready to make the jump. Should I go with a bigger Maggi (3.7i) or should I abandon planars and go with the very alive sounding Tekton line. What I have read so far is that the DI and Moab sound very alive. That I think is that sort of thing I feel is a bit thin with my present system. I am expecting to hear (fairly so) that if i want to feel music hit me in that chest, a planar speaker is not for me and I need to go with dynamic driver. That said, I do love the transparency and cohesive sound of the Maggi, so I want it all I guess? =)

Welcoming any advice or food for thought on this.
trebuchet
@fuzztone, thanks. i've not run across Buchardts before.  These are powered beasts eh? interesting. Not used to seeing big towers be powered. 
@mapman right yeap, completely understand and expected this reply. I guess I am looking to a) confirm that going to a bigger planar will not provide the dynamics I'm looking for, and if that is true b) how do I get the same kind of transparency and coherence (in this price range) from a box.  Hence Tekton, since this is what I keep hearing about them. "Perfect midrange" some say, and so on..
I moved from 1.7i to 3.7i and I'm very happy with the way they rock. Plenty of slam and bass plus the soundscape they paint and the purity of sound and instruments. I spent plenty of time auditioning speakers before the 1.7i purchase and just fell in love with the Maggie sound. Moved to the 3.7i unheard when a used pair came up at a great price, just confident I would get more of what I loved and I did
 Running then with Pass 250.8 Ina 12 x 15 room. You should really try to listen to both before you buy.

I recall fond memories when as a youngster I forked out $500 for a pair of Magnepan MG-1's.  They were unlike anything I heard before.  Drove them with Hafler electronics I built from kits.  I upgraded the crossover--get this--with mylar caps!  Many years later I returned to the Magneplaner camp with the 1.7's.  Loved those as well.  Great speakers.  

Eventually I gave the Tekton DI's a try.  It took little time to discern the DI's as the superior transducer.  Better detail.  Better sound stage.  Far better dynamics.  Better extension and just as coherent as the 1.7's.  

So the Moabs seem like an easy pick.
the Svs don’t give you the impact you need?
add a second?
   Wow, that’s an amazing sub!
 Try the,moabs, their friggin huge, and should quash your ears need for impact!

  Then again, those Maggie’s are killer too.

hard decision.  
Good luck