I dont recall ever having a component that was warm to the touch while powered down. My 976 is warm, not hot, indicating it is consuming power. I suppose it is essentially in standby mode before switching it on with the crazy blue button.
Probably not an issue, just worthy of note !
Back in the day, when I was a true audiophile, regarding solid state components, the industry idea was that warm circuits sound better that cold ones...just say'in!