In these days I have compared Topping dx7s with audio-gd r28 and for me r28 offers a superior listening experience and I prefer it clearly. More dynamic, more musicality and a more realistic sound. The topping sounds more digital, poor in dynamic and I hear the glare on highs which makes the singer a little robotic..
Later I also took an audio gd d27 (similar to the nfb 27.38 reviewed on this forum) and again there was no competition between the two, I clearly preferred the d27 (very different in sound from both Topping and r28).
I do not know why it gets those measurements here, but I honestly do not care. I prefer to rely on my ears and I'm very happy with my gd audio products.
In conclusion I tell you that with the Topping I have an audible background noise with my IEMs when no sounds are played.. the audio-gd instead is totally silent.
I don't have any problem with this and I get a bit annoyed when such posts receive heaps of derisive comments; not annoyed enough to bother commenting normally I might add.
As amirm notes in his conclusions, he was hard pressed to pick out any differences when listening.
What has incurred contributors and owners displeasure on a number of subjectivist forums (I've even been banned for daring to point this out) is there is no way you could call this a better product, or transparent, or even Hi Fi and certainly not call others deaf or having a pile of crap that they haven't spent enough money on for a Hi Fi, if one accepts amirm's measurements (a point overlooked in general. Subjectivists have been known to 'bend the truth in reviews so the same level of doubt needs to be applied to any presented measurements by objectivists).
For me the benefit of this site and amirm's measurements are, I tend to have more faith in them than an opinion (It takes a lot more trouble to doctor up some graphs than it does to wax lyrical on a forum) and it shows that there is often no relationship between cost and presentation with performance.
I'm sure I've had some kit that measures horrendously, but I know through listening to other better measuring kit that any differences I believe I may hear are so slight that they become inconsequential to my listening enjoyment. There is a valid argument that states I don't care how it measures I like how it sounds and I support this.
However, the great thing about this site, assuming the measurements are correct, is
I can make a better informed choice. I like that a lot. It doesn't necessarily mean I'll like the better measuring kit though.
As long as people are prepared to keep their subjective preferences applied solely to their listening experience and make no further inference regarding the fidelity of their kit, or the shortfalls of the kit of others, I'm more than happy to accept their views as perfectly valid.