Hi all, I am a new ARC Ref 5SE user. It has about 73 hours now, connected to McIntosh MC452 amp. While I am happy with its sound quality and how Ref 5SE integrates with the rest of my system, I am wondering if other users experience any over heating problem. My Ref 5SE runs really hot until it damaged the wood shelf above it. I was told the clearance was not enough, so I changed to longer legs, now having 3" clearance between the top of Ref 5SE and the wood shelf above, but still it runs very hot. If used longer than 3 hours, even the volume control knob becomes hot. Is this normal? Thank you.