New amp for Vandersteen 2CE

craig2112, 
if you are going to stick with solid-state, my recommendation would be to stick with a bipolar (BJT) output stage power amp (like the DNA 0.5 you have in your list). 
I see that you've been listening to a BJT output stage power amp (your Adcom GFAxxx) all this while & staying with that topology would be recommended. I think that BJT output stage power amps sound better than MOSFET (NOT intending to start a BJT vs MOSFET argument) but then each listener has their own preference. I think that BJTs are a much better current source (which is basically what an amplifier output stage is) & since BJTs have higher gain, fewer stages (less distortion & less noise) are required for a high(er) current power amp. 
Looking at the impedance & phase plot

http://www.stereophile.com/content/vandersteen-2ce-signature-loudspeaker-measurements#9XpubygHe0pY1BVW.97

the speaker is a fairly benign load (I can see why Atma-sphere says that a lot of his customers use his OTL power amp with this speaker) but it is mildly taxing to the power amp hence ensuring that your new power amp has sufficient current at 4 Ohms (for the bass region where the speaker impedance is 4 Ohms & phase angle is mildly inductive & mostly capacitive) would be a good idea. 

Thanks Atmasphere. I have tube guitar amps, but haven’t gone to tubes in my audio system. For now exposed tubes seem like a problem waiting to happen - kids.

I've seen comments like this a fair number of times in the last 40 years. It does make me wonder how we humans made it through back when tubes were the only game in town! So far as I have been able to determine, as far as kids go, tubes are not any bigger deal than a turntable or CD player.

I don't think an amplifier change will give you what you're looking for. If you decide to go that route, try before you buy.

I hear that Ayre Acoustic V5-xe is great match for those by coincidence I have one for sale, is listed on Audiogon check it out and check the reviews. This Amp is like new and the price is good. This one will make you happy.

Sim Audio sound great with these speakers.