I've been searching AVS and the internet for the last few hours and I can't seem to find anything that reliably answers the question of how output wattage relates to actually power consumption at the outlet. I've seen alot of forum posts and articles attempting to explain how the output wattage RMS is measured/distorted compared to the input, but nothing explaining to me how I can reliably predict power requirements.
I've recently been stationed overseas in Italy and my older Sony STR-K900 is on its way here. The specs sheet claims that it outputs 900 watts RMS, but at the same time claims only 170 watts of power consumption when operational. This doesn't make sense to me at all, and since its not dual voltage I need to make sure that I put it on a transformer that has sufficient output. And since I've been tempted to upgrade my receiver for awhile if I were able to find a dual voltage receiver (haven't looked yet, don't know if this even exists) I still need to understand how much power I'm drawing because of Italy's ****** power grid (I'm limited to 3000 Watts total load on my house, plus electricity is very expensive).
So long question made short, can someone help me understand power input vs output in the sense of worrying about getting an accurate consumption number versus the usual worry about getting as much power output as advertised?
I've recently been stationed overseas in Italy and my older Sony STR-K900 is on its way here. The specs sheet claims that it outputs 900 watts RMS, but at the same time claims only 170 watts of power consumption when operational. This doesn't make sense to me at all, and since its not dual voltage I need to make sure that I put it on a transformer that has sufficient output. And since I've been tempted to upgrade my receiver for awhile if I were able to find a dual voltage receiver (haven't looked yet, don't know if this even exists) I still need to understand how much power I'm drawing because of Italy's ****** power grid (I'm limited to 3000 Watts total load on my house, plus electricity is very expensive).
So long question made short, can someone help me understand power input vs output in the sense of worrying about getting an accurate consumption number versus the usual worry about getting as much power output as advertised?