I used to have one, and I don't recall it being that warm when idle, only when being pushed did it begin to get hot. However, I had it in a well ventalated/open location.
MC352 owners
Hello there, I just had my Mcintosh MC352 biased and checked out but it still runs a little hot..... I put an electric thermameter on the heatsink and it read 92 degrees. Chuck at Mcintosh said it should be fine but I'm wondering if your amp runs that hot too. It gives off heat like a small tube amp.