Within the last 24 hours, some generous individual over at americanradiohistory.com has finally posted back issues of Stereo Review Magazine. This is big news as Stereo Review has never been available online, save for a few odd scanned pages here and there. For the first time, whole issues are available, including those from the 1977-1980 era.
The search function does not yet seem to be working yet for the recent issues, although I'm sure this will be fixed in time.
http://www.americanradiohistory.com/HiFI-Stereo-Review.htm