You could smooth the sound with the addition of new power cords. Gold ends (check VHAudio.com) by Oyieda will do it. The ends make the biggest difference...you can use the best Home Depot wire for the rest.
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?