@eliz, I appreciate your apprehension regarding class D, as there are so many versions ones head spins meaning mistakes are likely to be made, That, and maggies are current/power hungry speakers
About 5 years ago I had
Maggie 3.5Rs. Never getting what I thought they were capable of, I decided to biamp with a W4S MC 250/500 (multichannel amp @ 250/500wpc). These were older modules that never floated my boat, so I bought a Parasound A 23 for the ribbons, butit ran so hot even at idle that I knew eventually parts would break down, and it added ~ $30/mo to my electric bill. No bueno!
My room is very large requiring a lot of power. I finally sold the MC 250/500, the A23 and the maggies after blowing 4 ribbons and tiring of their room dominating size which blocked my 7 x 13 front window view of my front yard
I replaced the maggies with 95dB Emerald Physics KC IIs, which are also open baffle, but less than 4ft tall, yet they throw a similar sound stage, but unlike the 3.5s the crossover to the tweeter is seamless
I bought 2 EP 100.2SEs
class D amps
with hq fuses .These amps didn’t do it for me, but in retrospect, it is quite possible it was an IC issue.
Next up was the Audio Alchemy DPA-1 stereo amp, which is/was a an excellent amp, but not enough power in my room. I replaced it with 2 PS Audio M700s and am very very happy. They offer an in home trial
hth