just quoting the WHF reviews ... I never made that up ... read for yourself
Are you telling me that the Pioneer was reviewed and didn't have one slight discrepancy against it?
show me one 
You have been highly selective in only picking the 'againsts' rather than the overwhelming positive points of a few reviews. And only from one publication.
Your challenge (to find discrepencies with your own amp) is ridiculous given that it was made 30 years ago, and it is highly unlikely any WHF (or other magazine's) online reviews exist unless - after a lot of digging - someone has scanned a reprint as a .pdf somewhere or someone here has an attic full of 1978 - 1980 reviews. (Even assuming it was reviewed back then.)
I am not even sure WHF existed in 1978 when your amp was first made.
Some of these old Japanese amps from the late 1970s were very good (and some still are) but to suggest that it only received universal and total acclaim (with no 'buts' about it's performance at all) and then challenge other people to find otherwise is lazy. If you are certain of this - because you have access to the contemporary magazine reviews - then pop them them up here for us to look at.
Obviously your 'negative' points about the modern amps - that you highlighted/cherrypicked from WHF reviews - means that (to keep the playing field level and fair) you will need to provide all the positive evidence about your Pioneer from similarly conducted magazine reviews and not internet testimony from individuals on web forums.
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