I mentioned multiple times before that we cannot just go by the "power consumption". For one thing, there don't seem to be one single standard being followed by all.
The mains fuse, smoothing caps and output device ratings may actually provide a little more insight. Fuse ratings may be useful but not all that reliable either because different power transformers could have different inrush current characteristics, combined with the possibility that some manufacturers may have build in features to reduce the inrush current thereby allowing them to lower the fusing ratio, though it is a safer bet to compare models within the same brand.
Below are info I managed to gather on the fuse, caps and output transistor's ratings (100% accuracy not guaranteed):
You can see the
potential jump in power supply size from the RXA800 series to the RXA1000 series.
For those who insist to compare power output based on the specified power consumption, below are some examples of what you can find from their respective Owner's Manuals. Note that I only include models that are based on class AB amps.
Yamaha RX-A2060, same for the RX-A3060:
Canada model.............................................................. 400 W
Korea model.................................................................. 390 W
Other model.................................................................. 490 W
Maximum (Asia, Brazil, and general models.............. 1,210 W
Anthem MRX1120........................................................ 570 W (typical load)
Anthem MCA525 (5X225 W)....................................... 550 W (typical).......1200 W (high output)
Marantz SR7012........................................................... 710 W
NAD T758 V3.................................................................53 W (idle)
Rotel RSX1562 (7X100 W)............................................500 W