Over the past few months I have been involved in a number of disccussions regarding wattage ratings. I have argued that amoung sub $1000 amps/recievers only a few manufactures (H/K, Outlaw, amoung a few others) use "real" numbers and that most do not (Sony, Pioneer). I have stood by my arguement that a true wattage rating for a home theater reciever should be all channels driven 20hz -20khz. Many have disagreed with my opionion about that and I'm sure many more will. I was flipping through a Sound and Vision magazine last night and saw something interesting... Note these measurements are at 1Khz and not even 20-20 MARANTZ SR4500 Rated power by manufacture - 80 W x 7 into 8 ohms with maximum 0.08% THD DOLBY DIGITAL PERFORMANCE: (Output at clipping 1khz 8ohms) 1 Channel - 118 watts 2 Channels - 98 watts 5 Channels - 76 watts 7 Channels - 64 watts Pioneer VSX-815 Rated power by manufacture - 100 W x 7 into 8 ohms with maximum 1% THD DOLBY DIGITAL PERFORMANCE: (Output at clipping 1khz 8ohms) 1 Channel - 110 watts 2 Channels - 95 watts 5 Channels - 70 watts 7 Channels - 61 watts Sony STR-DE698 90 W x 7 into 6 ohms with maximum 0.09% THD DOLBY DIGITAL PERFORMANCE: (Output at clipping 1khz 8ohms) 1 Channel - 141 watts 2 Channels - 122 watts 5 Channels - 35 watts 7 Channels - 31 watts With all channels driven not one of the above recievers produced the wattage they claimed with all channels driven at 1khz (not even 20hz-20khz which is how I belive the tests should be). Another point I would like to make. Some people on the forum have claimed that with all channels driven the manufacures spec will probably be off by 10 watts at most and I have claimed that it would be much more than that. I think the numbers above show why I feel that way. Here is the link to the Sound and Vision test results: http://www.soundandvisionmag.com/as...control_lab.pdf The whole article is on there site to if anyone is interested. P.S. I have also stated that magazines are not to be trusted as they get advertising dollars and don't give bad reviews. As bad as the Sony did they hardly dogged it all which is sad considering they are selling a 90x7 reciever that puts out 31x7.