To Pmkalby:
I received a reply from Armin at Classe, who says
"We have done some testing with regards to this concern, and I can tell you that the ringing is Not transposed into the sound from the speakers.
It is also very difficult to make the heatsinks ring when playing music unless the CAM-200 is directly in front of the speaker, and even in that scenario the ringing is very limited, and is not transposed to the speakers."
Nonetheless, I did cut up some wine corks into small trapezoidal wedges, and pushed them into the top and bottom of each heat sink pair. It seems to cut down the ringing when I clap, and has so far survived a loud listening session where the amps got quite hot. There is still a substantial airflow path to allow convection to work. This should take care of any noise that might have come through the amp and speakers, as well as any ringing that comes straight through the air to me.
thanks again for everyone's great ideas on this question!
I received a reply from Armin at Classe, who says
"We have done some testing with regards to this concern, and I can tell you that the ringing is Not transposed into the sound from the speakers.
It is also very difficult to make the heatsinks ring when playing music unless the CAM-200 is directly in front of the speaker, and even in that scenario the ringing is very limited, and is not transposed to the speakers."
Nonetheless, I did cut up some wine corks into small trapezoidal wedges, and pushed them into the top and bottom of each heat sink pair. It seems to cut down the ringing when I clap, and has so far survived a loud listening session where the amps got quite hot. There is still a substantial airflow path to allow convection to work. This should take care of any noise that might have come through the amp and speakers, as well as any ringing that comes straight through the air to me.
thanks again for everyone's great ideas on this question!