Originally Posted by Earcatcher
I find them getting pretty hot, particularly the MBP. I space them.
I recommend that spaces be used with any class 'A' gear that generates a significant amount of heat, but often end users don't have the rack 'real estate' to do this. It is generally recommended that you provide airflow and space, however none of the PII pieces generate as much heat as some of the tube gear I own! It also depends on the cooling in your studio, ambient temp, etc..