Best amp for ThielCS6.

I just went in and fired up my 4 year old CS-6s I am using a McIntosh mc-500 and I can't imagine them sounding any better they are connected with Nordost Valhalla's to my estimation a very very good presentation. When I first auditioned the cs-6 they were powered by a Levinson 33H also very good I am just a real big Mac fan so thats what I bought I first used a Mc-300 that was not quite as fulfilling. I have heard of people using the Bigger Krell Amps to good success. My experience has been the room and the positioning are as critical as any other link in the system fire them forward first then toe them in ever so slightly to tune them in keep them as far apart as space permits about 9 feet and bring them together till the center fills in nicely if possible dont put anything between them I use mine in a home theater so that is not practical. Treat your first point reflection on the side wall this will also help with immaging. I can go on for hours if you email me I will give you countless tips believe me I have mine sounding pretty good Thanks John