Was running my Maggie 1.7s with my Rogue Cronus Mag.II until last AZ Summer persuaded me to switch away from extra heat of tubes back to my old stand-by ADCOM 200/350 W SS amp.
I don’t listen at ear numbing levels, so the Rogue @100W per channel, with KT120 tubes, sounded great (hocked to the 4 ohm tap) and I seldom had to crank the volume knob above 1/4.
In the Summer and through this past Winter I have been using my ADCOM. At 350W @ 4 ohm, it has no problem driving the Maggies very nicely at any volume I care to listen at.
I have no doubt that the Carver Ravens would do a nice job with either the 3.7 or the 20.7 Maggies.
Someday, when I can quit buying trucks and motorcycles, I hope to move from the 1.7s to the 3.7i. Never the less, one way or the other, I will always have Maggies. Best of luck......Jim