Good for you! These are excellent speakers. Personally, I use Tympani III speakers and have an "extra" pair that are still in the boxes that Magnepan sent them to me in after a refresh there. I BELIEVE they were the last set of III's they refreshed.
I still use the Hafler 500 I built in 1977 with a CL-32 pre-amp. Not the best, but what I can afford right now. I sold Audio Research and Magnepan in my shop when these companies were marketing their products together, and I have never heard better sound than that combo (back then, of course).
Today, Magnepan has more advanced speakers, but I agree that there is no more accurate music reproduction than Maggies regardless of the model you use. If I had the funds, i would, of course, use Audio Research gear all the way, but restoring cars (currently a '66 'vette) and playing with "toy" trains (with engines in the $2000 range!) and playing at music on various instruments takes both time and funds, so I am just fine with what I have.
Enjoy your Maggies, and if you can get some Audio Research stuff eventually, you will enjoy them even more.
Cheers,
Richard