Cool it!

Running 3 4"dia. ’puter fans atop my SS amp, ’blowing in’ the grate.

Have only triggered the ’fail safe’ once.....and I was being pretty enthusiastic.

12vdc with a wall wart, leave it on 24/7/365.25. Keeps the dust away as well...cheap insurance.

If it has a grate, it gets ’fanned’. I don’t understand why tube amps don’t come with them. If those heat sinks get hot, they’d benifit as well.

'Ell, my 'puter has 4.  Power supply, CPU, and case (of course), but also one on the graphics card that cools the audio card as well.  And I'm considering adding an exterior pair as well.  Gotta stay 'chill'...

"I love the smell of hot electronics....NOT." ;)

Being an EX Sous Chef I will suggest fanning the air "away" from the amp.

Sucking air away from a hot spoon is considerably more efficient than blowing on it.

DeKay

DK....easy 'nuff with dc....;)

"Sous, sous, sushi...."

Sorry, old Tubes number....couldn't resist.  Spouse is hooked on 'food porn'....'Chopped', Beat the Flay, Wurst Kooks....all that....

"OK, 'chefs'....for our 'alien entre'....Open that basket....if you dare...."

*horrible screams and sound of crunching bones...*

"Well, I guess the chefs are on the menu tonight..."

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.  

+1 ericsch

I use the same thing and it works great.  Comparatively speaking, pretty inexpensive, too.