I advise anyone buying a home theater receiver to check out Sound&Vision AV receiver reviews- they always include their own measurements of the receiver's power section, so you can easily compare any 2 receivers you're considering.
Here's an example of 2 receivers:
Two channels driven continuously into 8-ohm loads:
0.1% distortion at 104.7 watts
1% distortion at 135.3 watts
Five channels driven continuously into 8-ohm loads:
0.1% distortion at 77.0 watts
1% distortion at 106.6 watts
Seven channels driven continuously into 8-ohm loads:
0.1% distortion at 75.3 watts
1% distortion at 97.8 watts
Read more
Here
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Two channels driven continuously into 8-ohm loads:
0.1% distortion at 123.0 watts
1% distortion at 147.6 watts
Five channels driven continuously into 8-ohm loads:
0.1% distortion at 97.6 watts
1% distortion at 106.1 watts
Seven channels driven continuously into 8-ohm loads:
0.1% distortion at 72.7 watts
1% distortion at 80.8 watts
Read more
Here
One of these is a Yamaha and one is an Onkyo. Guess which is which, and guess which was a "Gotta Have It" and which was Pretty cool? Not to mention, the ONKYO is cheaper.