Looking for power amp with warm, smooth sound


Have some Monitor Audio RS6's that are sounding bright and fatigueing to my ears with my Marantz 6003 receiver. Would adding a power amp with warmth tone down the brightness and add more fullness to the sound of the speakers? I would use the Marantz as a pre for now. Any recommendations for one under about $1200?
lefty5432
Lefty - OK. Nevermind then. I had some suggestions of dealers to visit if you were in southeast. You might want to check out Audiokinesis or Adaleus, both out west, though not in Seattle. Their speakers and amp suggestions are far from bright.
My suggestion is that you go out and find some dealers that carry things you are interested in and listen, and then buy from THEM.
You are going to be chasing your tail for quite some time if you do the same old "well reviewed, must be good" dance and honestly go nowhere as far as a assembling a musical and satisfying system. Good luck.