Ditching Class A Amps due to Heat - Sort of a Poll

If someone is going to ditch their class A system because of heat, I guess a tube system is kicked out the door too! Really, the only drawback I can see in a class A is energy waste from heat dissipation.  Enough it may raise the electric bill. However in this forum that's not a problem . 

I moved from Class A/B to Class D - first to Bel Canto Ref 1000 MkII and then upgraded to Mola Mola Kalugas. Little heat, small footprint and superb power and dynamics. For me no going back to backbreaking heavy amps, even if i maybe compromising a thing or two.

To answer the OP, one of the main goals for my system was to reduce the heat in my room. I live in SoCal where temps average 85-95 degrees in the summertime, sometimes more, and electricity rates are high. I like to avoid using the air conditioner if I can.

In 2015, I had an 80 watt OTL amplifier, Class A. It was the proverbial space heater. I had a listening outfit - tank top and shorts, no socks. Not really a good look for an aging, balding audiophile. But the sound was marvelous and worth it.

The amps that replaced it are 8 watt SET mono blocks, also Class A. They barely raise the temperature in my room. It is only 70 degrees today, which is also the temperature in my listening room. I am wearing a sweater, long pants, and socks. I feel dignified. I have had my SET mono blocks for 7 years now.

When I got my SET's, I noticed that my electricity bill went down by about $75 a month. 7 years at $75 a month is $6300. My SET amps cost less than that, so I like to think that the energy savings ended up paying for them. In addition, the sound is better than ever before. Hallelujah!

I’m sadly amused at people worrying over slightly inefficient amps when the world population is exploding. We are already 6 billion over sustainable. I’m using my amp without any concerns or guilt. Btw, I have no children. That’s my contribution.

I have both a SS class D and 300B flea watt systems but I draw the line on very hot room heating tube amps