Need advice on McIntosh driving Thiel 2.4's

I'm debating on my next amp purchase.I just got a C2200 and like it quite a bit. I'm considering an MC402, but I have a concern as to whether there is enough power driving the Thiel's. I have no doubt that 90% of the time it would be adequate, but that other 10% concerns me. I also have no doubt that I would be better off with a set of MC501's or my second choice of a Pass X350.5, but both are a little more than I relly want to spend, though I may have to do that to be satisfied. I have owned a few Pass amps over the years and really like them, but have never owned a McIntosh amp and I'm not in an area where I can easily audition.