I dont get either of the 2 posts above - I think one might be a dig at my writing which gets edited by my phone a lot of the time without me even noticing. The second comment is not funny - good attempt though
People want everything blind tested. It was not a triple blind abx test, however I didnt know what was being changed and I didnt know the system the room or the music being played.
I did hear a clear differences to very small differences and it was at times hard to distinguish and categorise into words between them. However I selected as my preference the same "system" 3 times and my least favourite the same "system" the same 3 times as well. So I could hear a difference. The least favourite was very easy to distinguish each time - that actually was the best platform I now know - the Atacama bamboo based solution as it added the least to the sound.
I was at the time a very inexperienced listener even though I had been into the hobby for many years. Thats not the case anymore.
So being American makes no difference even though I am as British as they come - as I say this might not convince anyone else but it convinced me that day.