cooling my Krell monoblocks

While I'm at it I can ask the D'Agostinos where the word "Krell" came from. That too would be interesting.
Puerto (Answers)

Others have reported that the name came from the Star Trek character, Krell, because the owner is a Star Trek fan.

Let us know if you confirm that with him.

Classicjazz - do you set the Noctuas on top of the amp to pull heat out of the inside or along side to pull heat from the fins?

Classic.
Thanks for tips on quiet fans. I may have need sooner than later.
Also, your fan use sounds correct. 'Draw the heat out'.

An annual cleaning / dust clog hunt may not be a bad idea, either.

OK - Here is what Raymond, a servce rep and Krell said: Do not use fans or loosen fin bolts. A remedy would be to send in the amps to Krell for installation of heatsink tape. I am trying to find out if this could be a DIY.

He neglected to respond to my question about the origin of the word "Krell". I'll keep pushing.!! LOL!

Krell advises that the heatsink tape is installed internally thus requiring dismantling of the amp. Guess I'll just learn to tune out the click.