Well - could anyone tell me where to find the blind tests? A quick search finds many references to such tests, but no actual, you know, links to reports of the tests themselves.

(well, there's a second hand description here:
http://forum.ecoustics.com/bbs/messages/1/18030.html
which might lead me somewhere eventually).

The power requirements are one thing, and that makes perfect sense. But within the limits of a particular reciever, I don't see a *necessary* reason for noticeable differences in sound quality.

Show me the data, please!