Would sand help my amp?

Seeing a recent thread on sand-filled speaker wires got me to thinking. Would burying my amplifier in a tub of sand reduce or eliminate any potential harmonic disturbances? I don't *think* that the sand would do anything to hurt the amp (power amp, no moving parts), and it just might clean up this slight tizziness I hear at high volumes. What do you A'goners think? Has anybody tried anything like this?