I tend to agree with MC about more efficient speakers. However IF you have heard the Maggies and like them, then so be it. Lots of people do. That's why I auditioned them. They sounded great...as long as you stay in the sweet spot. Salesman said they weren't set up just right and maybe so. But everything appeared in order. And maybe a small adjustment may have opened the sweet spot. But the sweet spot was immensely small. If I leaned my head over to make a comment, I lost the sweet spot. I don't know if that was normal. But I didn't care for that aspect. Maybe others who have them can chime in on that issue.
Sorry I can't be more help on the amps or integrated.
Sorry I can't be more help on the amps or integrated.