kudos for you randomized switch. I wish I was informed(or just willing enough) to go and do something like that for myself. do you hear the switch? like can you tell when there was a switch compared to when there isn't one?
I ask someone to help when need to, but everybody knows it's going to be boring and possibly long, so nowadays when I ask for someone to help me with a test, they all remember urgent stuff they need to do ^_^.
about you failing to identify a clear benefit/difference. I present to you this multiple choice:
A/ lol noob, u no gloden irz
B/ your rig isn't good enough, you need great gears to benefit from a better amp
C/ ABX tests almost always result in no difference, just listen! that's when you perceive all the "real" differences.
D/ you lucky dog, you can enjoy your music without having to spill thousands of dollars in gears.
E/ stop lying! you must be one of those people with the "everything sounds the same" agenda, planning to collapse the economy by convincing people that they don't need 400 different models of everything.
/!\ not all options are certified facts