I have a pair of Mc1201's a MC352 and a pair of MC2255's.
The 1201's run cool all the time for me, and I tend to run them hard. They only get warm to the touch after a good 45 minutes of driving them hard. I did have a issue once with my MC352 I had it in a cabinet with not a lot of airflow and it got hot and tripped the thermal protection circuit I moved it to the floor and it is fine barley gets warm. The McIntosh amps need there space give them that and they will perform beautifully. Your room looks awesome, how are you finding the design of your ceiling acoustically speaking? I am going to gut my room next month and try again there are a few issues that are driving me nuts and I will fix them once and for all.