So what is science? If there is one data point and one uses this data point to draw a definitive conclusion to me this is not "too scientific".
Actually, a very considerable amount of science is almost exactly that. There are several caveats to this statement though: Firstly, it depends on that “one data point”. For example, is that “one data point” an objective measurement of some physical property or is it an objective identification of some non-physical property, such as human perception for example?
If it’s the latter, then you need a dataset rather than one data point and you won’t get “a definitive conclusion”, you’ll get a conclusion with a level of confidence, which depends on the sample size and it’s composition.
If it’s the former, then it would be the process of science, though not unequivocal/accepted science. It wouldn’t be accepted until the data point had been independently verified. Also, scientists would generally be more careful of not extrapolating too far in their “definitive conclusion”, as getting it wrong could easily be a career ender.
The ABX thing is one way (of course not the only way) as an attempt to establish a more plausible, a more conclusive interpretation of the finding, in this case its the "why we hear what we hear".
ABX doesn’t answer the “why we hear what we hear”, it just falsifies the null hypothesis (there is no audible difference between two things), as castleofargh stated. Furthermore, it would be pointless and very difficult to run an ABX test on many of the measurements. Many of the measurements are at such a low level, that setting up an ABX is problematic because the test equipment is likely to influence the result and there’s no point because they are so far below audibility anyway.
Btw On record I'm not challenging or "attacking" what AMR has been doing so save your defence of AMR on his behalf.
Also on the record, I’m no fan boy of Amir. I’ve had one or two “run ins” with him in the past. However, I do applaud the fundamental principle of what he’s doing, the objective measurements, although I wouldn’t give his conclusions much more weight than any other reviewer.
Perception error is valid when there is little to no change, with significant improvements it is heard no just by me and my imagination.
A falsehood, backed up by a fallacy! Do you really believe that you are dead, or do you just not realise that’s what you’re effectively claiming? Do you have any reliable evidence to support your assertion?
The rest of your post is based on the above falsehood/fallacy and therefore isn’t worth a response, except:
L30 failed to deliver advised power output. With 2300mW x 2 @32Ω and about 40% of headroom sound totally collapsed on my Utopia's ….
You haven’t answered the question. Are you claiming the measurements themselves were wrong/false or that measurements for some other usage conditions were posted and you incorrectly assumed they were applicable to your usage?
G