I ran Maggie 1.7's with a MA6300 at 160wpc/4 ohms. It was okay but I felt that I was missing something.
I then moved up to a Krell 300Si Integrated at 300 wpc/4ohms. This was a big improvement. Much more detail and resolution. Better bass.
I am now running the Maggie 1.7's with a Wyred4Sound ST1000. Completely blows away the Krell. Another quantum leap in detail and resolution. The bass is much better - palpable.
Maggies need power.