Tubes to solid state for amplifier path...

Minnesota has actually recorded the highest dewpoints anywhere in the world. We get very humid summers, with highs in the upper 90s and low 100s (usually in July). The smallest window air conditioner I could find will easily keep up with our S-30 in my living room- its class A and 30 watts per channel.

But- I would be looking into a class AB tube amplifier before I went with transistors! A class A transistor amp is going to make nearly the same heat as a class A tube amp- the filaments are a minor concern. IOW most of the heat comes from the class of operation. So a class AB tube amp will make **less** heat than a class A transistor amp will, assuming that they are about the same power.

I like to fry eggs on top of my class A amps.

clayton audio. I have the m-300's. You can barely feel the heat in my room which is somewhat small. They are class a and they are awesome.

Radrog, I sincerely believe you, I finally had the chance of auditioning a Class A integrated amp, and WOW was it HOT! Class A can serve double duty for cooking or heating for sure.

I sold my Pass X250.5 and bought a pair of Channel Islands D-200 mono's. I don't notice any difference in the sound. I do notice a difference in my electric bill, and how cool they run in the summer.