I wish I could help as I have the 565SE, but no Maggies. I will say it’s a great sounding amp that is very close to neutral, perhaps a touch of warmth. I have a pair of Kef Q750’s hooked up to it and it runs cool at any volume level, Maggies will be no problem for it.
You’d have to spend significantly more to get gains in SQ at this wattage level.