About a month ago I picked up a used pair of JC-1s for my 3.6s. They replaced a Levinson 334 that worked quite well in my system. The added power of the JC-1s added a lot more control to the maggies - they played effortlessly, the bass was tighter and the highs more extended and cleaner. I have heard some say that the highs are sharp with the JC-1s but I have not heard that (that could be because I use a tubed pre-amp - you really must have tubes somewhere in the chain with 3.6s). The music just flows with the JC-1s. I am very happy I made the move. Prior to purchasing the JC-1s I thought about purchasing the Pass 350.5 and the Classe CAM400. I have heard both those amps in other (dealer's) systems and was impressed by each and thought of purchasing each. For me, I think it was the desire to have monblocks and the apparent universal praise the JC-1s have received in the audio magazines that tipped me toward the JC-1s. Now, if budget were not a concern, I would definitely look into Lamm 1.2s or 2.2s.
