dnanstad...
I am currently using a Simaudio 340i integrated with my 3.6's. Previously I had a Pass Labs X150.5 amplifier, 150 into 8ohms, 300 watts into 4ohms with my CS3.5's and it was possibly the best combo I had. So much so I foolishly sold my first one only to buy another later. It's THAT good.
Unsound, another contributor here with a wealth of information regarding Thiel, correctly points out that the 3.6's require considerably more power than the 3.5's to perform best.
I'm currently weighing the possible return to separates and if - I said IF, jafant - I go that way again, Pass Labs tops my list.