Used Amp Under $1000

seaninatx
Why not try a new Schiit Vidar at $699 it will drive them no problems at 200w into 4ohms, which the Maggies are, and may sound better than the ones you mentioned, and you can trial it for 15 days.
https://www.schiit.com/products/vidar

Cheers George

Odyssey Khartago $995 new. 

I second the Vidar.  Used one while my Sunfire was being rebuilt to power my 3.5s.  Sounded great, but wished for more power, but I am in a large room, like to turn it up, and was pushing larger speakers than the MG1.  

I have not heard the Vidar, but it is getting a lot of positive press. It is also new, with a trial period. I love trial periods. I have owned a few McCormacks, as I am a fan of Steve's work. In my experience, however, amplifiers of his, 20 years and older, normally require rebuilds, which takes money. This is just my take on it, but obviously, others here disagree, which is ok. Enjoy ! MrD.

It appears the particular DNA1, as you selected above, has been overhauled, so, imo, you are good to go. Odyssey, although excellent, is a very warm sounding amp, if you like that. The CJ as well. The particular Classe has less " balls ", or " oompf ". Not a tube fan, with maggies, and not a Class D fan, at least not those above. Too bad you cannot hear them all, as you are getting opinions, mine included, as to what each of us likes. But for me, the Vidar or the DNA 1. Enjoy ! MrD.