You are not understanding what the manual is saying
Oh, I do understand what the manual is saying. I raised a very valid point: is this amp stable below 4 ohms? You should know that 4ohms is not an absolute fixed value.
they are saying that the amount of electricity consumed with lower sensitivity speakers will increase
This is just common sense.
and this amplifier is a beast based on original Krell Class Designs, think KSA 250, the amp was designed by Dan D'agostino originally and has no problem with less efficient speakers
This is irrelevant concerning the 8008 amp's behavior since they are not the same design.