I use a three channel DLS A5 ultimate amp. Suits me as it has plenty of high quality power for my sub (12" jlw6v2) and for the focal componets in the front. It really is rather good. Genesis are supposed to be the business, with fine british build. I use an alpine headunit, which offers great flexibility. Many find alpine headunits a little bright.

On the other hand, im sure that the McIntosh are in a different league in terms of both performance and price.

Always fancied some dynaudio componets, i bet they wouldn't need all that much help from a sub apart from the very low registers.Although i suppose you would as is common practice, set a high/low pass filter betwen the sub and componets.