I have a rotel RB990BX that I use with Magnepan MG-III's with good success. Rotel power seems typically robust in the lower frequencies--it makes drums sound great! The 200w seems to be plenty of power as the MG-III's like lots of power. At $400 the rotel is a good value. Good non-fatiging power, excellent bass performance. Can be bested in other areas.
I also have a Anthem MCA 2, which is also 200w. The anthem has more detailed highs and better imaging, but also sounds all up top compared to the rotel. Altimately I listen to the Anthem the most, as I value the detail and imaging with the music I listen to. The anthem is also about $400 used.
My advise...buy one of each like I did. Make a decision and sell one, or keep them both.
I also have a Anthem MCA 2, which is also 200w. The anthem has more detailed highs and better imaging, but also sounds all up top compared to the rotel. Altimately I listen to the Anthem the most, as I value the detail and imaging with the music I listen to. The anthem is also about $400 used.
My advise...buy one of each like I did. Make a decision and sell one, or keep them both.