I have a class A amp on my main system and a EL34 tube integrated on a second. The heat is a non-issue for me. I've owned some good quality class D amps (2 different Bel Cantos and a VTV Hypex along with some more basic units) and like the sound quality of my current amps better. The only advantage I find for class D is that they can be left on all the time, but I really don't expend that much energy in pushing the on/off switch.
Ditching Class A Amps due to Heat - Sort of a Poll
A discussion elsewhere about the future of Class A made me wonder how true one statement really is. So the questions are...
Have you done away with your Class A Amp due to Heat concerns?
Will you be moving away from Class A Amp due to Heat concerns?
Will you never buy a Class A Amp due to Heat concerns?
I only have a class A/B unit that does Class A up to 6 watts with almost no heat so really can't speak for those who have used in the past or currently own and run Class A Amps.