Folded tweeters vs. dome?


Good day, I am searching for main speakers which will replace my Kef IQ5's.  I want them to be a step up in soundstage and transparency, but only have a $1200 budget (family man you understand).  I have a Klipsch 12" sub so the deepest bass is not an issue.  My question is, in the opinions of those posting here, which tweeters will serve my purpose best, folded or dome?  I see a lot of speakers in the price range I'm searching, both 2.5 and 3-way but have not been able to audition any as of yet.  I'm watching used sets of Golden Ear Triton 7's, Wharfedale PI-40's, Quad Classic 23L among others.  My listening is a mixture of music and theater, most genre's.  I have a Marantz AV7005 pre/pro, a Rotel RKB 650 bi-amping the mains and (Kef) center, with a Rotel-RMB 1565 driving the surrounds (B&W and Klipsch). Thanks in advance for your input, so many questions, so little space.
128x128wisciman99
Thank you the insight and added knowledge.  I do mean the AMT as in the GoldenEar.  I would prefer a floor stander as opposed to a bookshelf, but the sound rules.  I am a Kef fan, and have considered extending my Kef inventory, so,,,,,, perhaps.
I love AMT's and have never heard a GE speaker worth paying money for. 

I strongly suggest you stay away from this type of buying based on technology. Stick to the results in finished products. 

Now, if you feel like making your own, then there's lots to talk about specific drivers and kits. :) 

What is your budget? Are the Monitor Audio Platinum's too much? 


Best,

E
Guess my point is this: For any type of driver technology  (Neodynium, Paper, Beryllium, AMT, dome, etc.) there are a wide range of quality and options. Buying a speaker because it has a dome Be tweeter, for instance, is not the way to go. 
I've only heard the Martin Logan Motion 35XT & Motion 20 but felt they didn't stage as well as my Dynaudio Excites.Imaging however did seem a touch better defined in the Motions...