I have always preferred Class A amps with properly designed heat sinks that cool sufficiently without and added fans (which might fail, possibly cooking your amp).
I have one system that runs two mono Class A amp, each of which puts out around 400 watts in heat just sitting idling (they actually put out less heat when working hard as some of the current is used in outputting sound). They run hot as Hell but were intended to run that way, and have been for more than 30 years
The problem with this sort of heat sinking is that it tends to be pretty large physically. The ones I use are 16.5" high and weight more than 100 lbs. each. I would get nervous with any amp that would turn to trash if a fan motor failed and you didn't notice immediately.
I have one system that runs two mono Class A amp, each of which puts out around 400 watts in heat just sitting idling (they actually put out less heat when working hard as some of the current is used in outputting sound). They run hot as Hell but were intended to run that way, and have been for more than 30 years
The problem with this sort of heat sinking is that it tends to be pretty large physically. The ones I use are 16.5" high and weight more than 100 lbs. each. I would get nervous with any amp that would turn to trash if a fan motor failed and you didn't notice immediately.