Which Krell do you have. I have the KSA-80B and while it runs warm, it does not get hot. Perhaps refer to the owners manual and see what they reccomend for a temp. Does it trip the fail safe? I drive my one Ohm Apogee Scintillas and I have never tripped the saftey. It might be that your amplifier needs to have its bias adjusted, or perhaps its time for a tune up. I had mine rebuilt at the Factory about a year ago. You might also call Customer Service at Krell and ask them.
