All of the data listed in the chart below was obtained from this spread sheet located at this web site What I have done is to compare the Manufacturer's published power rating (watts per channel), to the measured (or actual) max output before distortion. Based on this data, I created a ratio for each receiver/amp that can be used to quickly identify how close a particular model's actual output is claimed in advertising. The reason why I created this chart is not to look at individual models per say, but to see if certain manufacturers have a habit of inflating the amount of power their receivers can deliver per channel. I did this for educational purposes only! I have only included major companies with more than a single model with data available in the original chart. HERE IS THE CHART While there is no absolute conclusion, it seems that from the above chart, information published by Harman Kardon about their product's abilities can be trusted with a high level of confidence. Likewise, someone interested in purchasing a receiver from Kenwood might want to be weary of the products published specs on "watts per channel", as Kenwood seems to inflate these figures. If I have screwed this up, please let me know. I hope this is interesting and helpful, and not redundant, as I spent alot of time making this!