Amp circulation question

As long as it sounds and looks great after playing all day as you say, I would not be too concerned. Those temperatures are not really all that high for an amp like the Classe'. Operating ranges are usually quite higher than we think.

Make sure the component on the next level up is not getting its feet too warm. You may need to isolate it from the heat if the bottom has no clearance. This may or may not be a long term situation???

I agree with Tom that those temperatures should not be a problem with the amp.

Just be sure the shelf above is not vulnerable to long exposure to such temperatures, like wood for example.

As long as you have that air space around the sides and front of the amp you ought to be ok. Many years ago I put a pair of Krell MDA300 monoblocks INSIDE of a closed (custom built) cabinet that had absolutely no ventilation whatsoever. Couldn't run the system with the doors closed for obvious reasons. Checked the internal temp once with a digital thermometer- 180 degrees! Crazy. Stupid. Then I discovered a company in California, ATM, or Active Thermal Management. Bought a complete ventilation system with attic mounted "hush" fan, ducting, variable speed control, louvered intake vents. All for about $500. Literally lowered the internal cabinet temp. by 80 degrees. Well worth the money. ATM makes many different types and styles of ventilation and/or heat exhaust systems, even "free standing" fan contraptions with sensors. I even have one of their 2 fan setups sitting on top of my DAC blowing fresh air into the vent cutouts on the chassis. Been a while since I did business with them but check them out. I think they still exist. Good luck.

Be safe, just purchase an inexpensive laptop computer cooler that runs on its own power plug. Spending $10 should do trick. May two of them would be safer.

You don't have a problem, at those temps. Adding fans, on location, will add noise. Enjoy your music!