The power drop with impedance is important only if you plan to be using the full power of the amp. Not likely.
I auditioned a previous Classé amp (CA-2300). In my very quiet room, I could sometimes hear the fan running during quiet passages of music. For that reason, I didn’t buy the amp.
If your room has higher background noise, fan noise might not be a problem. IMO, it’s a poor design decision to put a fan on any high-end audio device. No fan is silent, and every fan gets noisier as its bearings wear. Yet Classé seems locked into this "IC tunnel" design of theirs. Can you think of many other high-end manufacturers who put fans on their power amps?
I auditioned a previous Classé amp (CA-2300). In my very quiet room, I could sometimes hear the fan running during quiet passages of music. For that reason, I didn’t buy the amp.
If your room has higher background noise, fan noise might not be a problem. IMO, it’s a poor design decision to put a fan on any high-end audio device. No fan is silent, and every fan gets noisier as its bearings wear. Yet Classé seems locked into this "IC tunnel" design of theirs. Can you think of many other high-end manufacturers who put fans on their power amps?