Glad that the Maggie's are impressing you. They do have a pretty long break in period...but once they have broken in, you should notice not only a bit more bass, but I remember thinking that they also get a little more extended in the top end air dept.
It has been a few years since I have had panels in my home, and it is a welcomed return, and for $600 the risk was negligible.
After further listening, my initial impressions stay intact. But of course more was revealed.
First, clearly, the magic is in the midrange and lack of boxy-ness.
There is definitely less at each frequency extremes with the MMGs, and of course, this being their entry level
speaker, you get more treble and bass higher up the line.
Reality also set in as far as partnering gear. The Simaudio amp drove them without as much as blinking an eye.
Switching over to my trusty ARC VS55 did not go well. There was simply not enough current.
I brought the speakers up to the office, where they will stay, and crossed my fingers, and partnered
them with my CLONES Audio 25 watt gainclone power amp.......to my amazement, it worked just fine!
No clipping, no anemic sound..what a surprise! I will try my 20 watt Carver Black Magic EL 84 amp as well,
and as a back up I have a power house Onkyo amp, with retro front meters to boot.