No... you need to read the entire post and the follow-up comments, where he addresses the question of whether or not he is measuring a ground loop.
Hmmm, I read the whole thing.
Difficult to look past their stance that all performance claims need to be proven to them by measurements or they do not exist. Also difficult to look past the overall very negative tone that both the of admins on that site have towards the microRendu, and REGEN, and John Swenson.
I'm not really sure what thats all about but clearly there is some sort of axe to grind there, as well as they seem to have an overt problem with John Kenny too. That puts them very decidedly in the minority, doesn't it? They're attacking people with good reputations.
Actually no one needs to prove anything to them, they aren't owed that in any way although they are certainly entitled to their opinions, but their accusations of false marketing claims and snake oil are not at all proven by their test.
Funny how the OP quickly changes his attack from the microRendu to the iPower, once his flawed methods are revealed and his dubious +8db claim is revealed to be his own error in testing.
Safe to say he didn't listen at all? Any +8dB boost would be obvious to the most casual listener, the fact he arrived at that accusation and published it as a test result when it didn't even exist reveals him to be a relative amateur.
Then add to his attack list iFi (again in an attempt to deflect or change the subject from his flawed +8dB microRendu claim and the subject of his original flame). Yet another reputable firm, with many very well received and successful products led by a brilliant talented designer, and he wants to pick on them too?
And this guy's claim to fame is that he is a former Microsoft executive?
Maybe the best take away I saw in that descent into the tired old argument of "it must be proven by measurements or it cannot exist" overgeneralization/BS was the link someone posted to power supply testing done in the U.K. by Nick at LDA (designer of the well received MCRU power supplies) posted on The Art Of Sound. Nick is also pretty well respected and, wow, he takes no stabs at the iPower whatsoever, indicating it measures very well for $49 and meets the manufacturer's claims.
Maybe I missed it or maybe it went over my head, but I saw no actual explanation on the Audio Science Review that confirmed he wasn't also measuring a ground loop. But the original gaffes in his testing method invalidate any/all conclusions (for me) anyway, calls absolutely everything into question and damages credibility beyond repair in my opinion.
Not looking for a thread war BTW, I appreciate the interest in this topic and am certainly not attacking the OP here on Head-fi.