pioneer sx1980 watts

i have 2 sx1980 receivers and they have different watts, one says 560 watts the other says 650 watts. i thought 560 was the norm, has anyone seen 650 watts before? thanks. joe
According to the owner's manual, the SX-1980 OUTPUTS 270 watts per channel and has a power consumption of 1400 watts.

What are you referring to when you state "one says 560 watts and the other says 650 watts". Where does it say this?
I would think you're talking power consumption not power output?