I can't find anything on it now but I'm pretty sure I saw it referenced somewhere that's where he received his pair, maybe it's since been edited out. It's pretty clear that many people on that forum have an agenda and I wouldn't put anything past mentally unstable people.
But the reason people take issue with Tyll's review is that what he describes is completely out of line with what the Z1R actually provides. It would be like if he was reviewing the HD800 and claimed it had too much bass, no treble, and a small soundstage. No one that's actually heard those headphones would take that seriously and that's exactly what happened here. That's fine if he wants to make outlandish statements about them, but no one should be butthurt either that his credibility or the actual Z1R's he used is being questioned in the process. Not to mention he doesn't even state what he uses to drive them, which matters a lot with these headphones.
maybe you did see it somewhere and i'm not sure which forum you're referring to, but i can guess. but look at what your're saying about it - it's just so extreme.
so you're effectively saying that tyll heard the z1r wrong because it "actually" sounds different. you do realise that you're talking about subjective headphone listening impressions (i'll leave the objective measurements out of this), which can vary depending on who you ask. maybe you and tyll hear the z1r differently. and your hd800 example is a poor one because it is the opposite of how he described it.
i've auditioned the z1r a couple of times and liked it. that said, i didn't find tyll's description of its sound signature to be at odds with my own impression of it, which is partly why i disagree with your take on this. and i'm going to invert your proposition because i think that it's the z1r owners who shouldn't be "butthurt" over a critical review from tyll (or any other reviewer for that matter). just because you disagree with his opinion, that doesn't give you (or anyone else for that matter) the right to attack his credibility as a reviewer. and i still think that your suspicion of the z1r that he used for his review is stretching the bounds of credulity.
now before folks start piling on the outrage over my defence of tyll's review,
i wish to add that my reason for doing this is not out of misplaced loyalty to him. my headphone preferences don't always align with his. tyll didn't like the fostex th900 for example, which i like and own. he found it too bright for his taste. i didn't take it as a personal affront to my taste in headphones, it didn't cause me to enjoy the th900 any less and i didn't feel compelled to take him down for it. i happen to like it, he doesn't, and that's ok. with regard to tyll's review of the z1r, while i can relate to his criticisms of its sound signature to some extent, they wouldn't be a deal breaker for me having auditioned it. i obviously like it more than tyll does, and that's ok too.
i really don't want to derail this thread any further from its purpose, which is listening impressions only. so let's take this to pms if you wish to discuss further.