I have the Kharma Ceramique CE 1.0 and drive them with a Krell FPB 200. I am very happy with the sound. If I were to replace the Krell one of the amps on the top of my lsit would be the Wolcott 220's. They can be had around $5000 used. I know that is a fair amount of money, but if you are looking at the Kharma's I doubt that sticker shock will be setting in yet.
I hope that helps.
I hope that helps.