On Wed, 30 Jun 2010 00:52:12 +0000, Cydrome Leader ǝʇoɹʍ:

David Nebenzahl wrote:
Got someone with a Kyocera receiver (R-851, 85 w/chan.) that they say
"smells like something's burning". Don't have more specific information
than that; I'm assuming no magic smoke is visible. I'm advising them
that perhaps something (dust, etc.) is in the heat sink that's getting
heated and smelling. Apparently the output stages (MOSFET) of these
beasts tend to run on the hot side.

weird heatsink in that thing:

http://www.audiokarma.org/forums/sho...d.php?t=246095

I've seen many of those in different pro power amps.